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adaxial cells
after
alar plate
alimentary system
anal fin
anatomy
anterior cardinal vein
atrium
axial chorda mesoderm
axis
basal plate
blastoderm
blastodisc
blastomeres 1-16
blastomeres 1-2
blastomeres 1-32
blastomeres 1-4
blastomeres 1-8
blood
blood island
body cavity
brain
branchial arches
bulbus arteriosus
cardiovascular system
caudal fin
caudal fin bud
central blastoderm
cerebellum
cerebellum proliferative zone
chorion
choroidea
ciliary marginal zone
CNS
cornea
cortex
cortical alveoli
diencephalon
dorsal aorta
dorsal fin
dorsal lip
duct of Cuvier
duct of Cuvier precursor
E-YSL external yolk syncytial layer
ectoderm
egg proper
embryo
embryonic shield
endoderm
epiblast
epidermis
epithalamus
esophagus
EVL enveloping layer
extraembryonic
eye
eye field
fins
floor plate
forebrain
forebrain marginal zone
forebrain proliferative zone
gall bladder
ganglion cells
germ ring
gills
guanophores
gut
hatching gland
head
head mesenchyme
heart
heart primordium
hindbrain
hypoblast
hypothalamus
I-YSL internal yolk syncytial layer
inner nuclear layer
internal carotid arteries
Kupffer`s vesicle
larva
lateral cells
lateral mesoderm
lens
lens core
lens epithelium
lens placode
lens primordium
liver
liver anlage
locomotory system
margin
marginal cells
medulla oblongata
melanophores
membranous fin
mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
mesenchyme derived from head neural crest
mesoderm
metencephalon
micropyle
midbrain
midbrain hindbrain boundary (MHB)
mouth
musculature
myelencephalon
myotome somite 1
myotome somite 10
myotome somite 11
myotome somite 12
myotome somite 13
myotome somite 14
myotome somite 15
myotome somite 16
myotome somite 17
myotome somite 18
myotome somite 19
myotome somite 2
myotome somite 20
myotome somite 21
myotome somite 22
myotome somite 23
myotome somite 24
myotome somite 25
myotome somite 26
myotome somite 27
myotome somite 28
myotome somite 29
myotome somite 3
myotome somite 30
myotome somite 31
myotome somite 32
myotome somite 33
myotome somite 34
myotome somite 35
myotome somite 4
myotome somite 5
myotome somite 6
myotome somite 7
myotome somite 8
myotome somite 9
myotomes
nervous system
neural keel
neural layer
neural plate
neural rod
neural tube
notochord
oil droplet
oil droplets
olfactory bulb
olfactory pits
olfactory placode
olfactory system
optic cup
optic plexus
optic stalk
optic vesicle
oral cavity
organ system
otic placode
otic system
otic vesicle
otoliths
outer nuclear layer
pancreas
paraxial mesenchyme
paraxial mesoderm
paraxial segmental plate
pectoral fin
pectoral fin bud
periblast
pericarial cavity
peripheral blastomeres
peripheral sensory axons
perivitelline space
pharyngeal teeth
photoreceptor cells
pigmentation
pigmented retinal epithelium PRE
pineal gland
pituitary
PNS
polster
polster\, beak-like mass of cells
pre-brain region
prechordal plate
presumptive blood
presumptive brain
presumptive cephalic mesoderm
presumptive CNS
primordial germ cells
proctodeum
pronephric duct
pronephric mesoderm
pronephros
respiratory system
retina
rhombic lips
rhombomeres (N4-8)
roof plate
sclerotome somite 1
sclerotome somite 10
sclerotome somite 11
sclerotome somite 12
sclerotome somite 13
sclerotome somite 14
sclerotome somite 15
sclerotome somite 16
sclerotome somite 17
sclerotome somite 18
sclerotome somite 19
sclerotome somite 2
sclerotome somite 20
sclerotome somite 21
sclerotome somite 22
sclerotome somite 23
sclerotome somite 24
sclerotome somite 25
sclerotome somite 26
sclerotome somite 27
sclerotome somite 28
sclerotome somite 29
sclerotome somite 3
sclerotome somite 30
sclerotome somite 31
sclerotome somite 32
sclerotome somite 33
sclerotome somite 34
sclerotome somite 35
sclerotome somite 4
sclerotome somite 5
sclerotome somite 6
sclerotome somite 7
sclerotome somite 8
sclerotome somite 9
sclerotomes
segmental plate
semicircular canals
sensory system
sinus venosus
skeleton
somite 1
somite 10
somite 11
somite 12
somite 13
somite 14
somite 15
somite 16
somite 17
somite 18
somite 19
somite 2
somite 20
somite 21
somite 22
somite 23
somite 24
somite 25
somite 26
somite 27
somite 28
somite 29
somite 3
somite 30
somite 31
somite 32
somite 33
somite 34
somite 35
somite 4
somite 5
somite 6
somite 7
somite 8
somite 9
somites
spinal cord
spleen
stomach
streak
swim bladder
tail
tail bud
tectum
tectum central zone
tectum marginal zone
tectum proliferative zone
telencephalon
thalamus
trigeminal (V) placode
trunk
trunk mesenchyme
urogenital system
ventral fin
ventral mesoderm
ventricle
villi
vitello-caudal artery
vitello-caudal vein
vitello-caudal vein precursor
yolk
yolk plug
YSL yolk syncytial layer
Stage 0
embryo
egg proper
yolk
cortical alveoli
oil droplets
extraembryonic
chorion
micropyle
villi
perivitelline space
Stage 1
embryo
egg proper
yolk
cortical alveoli
oil droplets
extraembryonic
chorion
micropyle
villi
perivitelline space
Stage 2a
embryo
blastodisc
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
perivitelline space
Stage 2b
embryo
blastodisc
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
perivitelline space
Stage 3
embryo
blastomeres 1-2
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 4
embryo
blastomeres 1-4
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 5
embryo
blastomeres 1-8
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 6
embryo
blastomeres 1-16
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 7
embryo
blastomeres 1-32
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 8
embryo
blastoderm
central blastoderm
peripheral blastomeres
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 9
embryo
blastoderm
central blastoderm
marginal cells
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 10
embryo
blastoderm
central blastoderm
marginal cells
periblast
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 11
embryo
blastoderm
central blastoderm
marginal cells
periblast
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 12
embryo
blastoderm
central blastoderm
marginal cells
periblast
yolk
oil droplets
extraembryonic
chorion
micropyle
villi
Stage 13
embryo
blastoderm
dorsal lip
EVL enveloping layer
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 14
embryo
blastoderm
embryonic shield
dorsal lip
EVL enveloping layer
germ ring
epiblast
hypoblast
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 15
embryo
blastoderm
embryonic shield
dorsal lip
streak
EVL enveloping layer
germ ring
epiblast
hypoblast
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 16
embryo
axis
blastoderm
epiblast
ectoderm
neural plate
presumptive brain
EVL enveloping layer
hypoblast
endoderm
mesoderm
axial chorda mesoderm
paraxial segmental plate
presumptive cephalic mesoderm
primordial germ cells
ventral mesoderm
presumptive blood
margin
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 17
embryo
axis
head
tail
trunk
blastoderm
epiblast
ectoderm
eye field
neural keel
presumptive brain
EVL enveloping layer
hypoblast
endoderm
mesoderm
axial chorda mesoderm
paraxial segmental plate
polster\, beak-like mass of cells
presumptive cephalic mesoderm
primordial germ cells
ventral mesoderm
presumptive blood
Kupffer`s vesicle
margin
yolk
oil droplets
yolk plug
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 18
embryo
axis
head
tail
trunk
blastoderm
epiblast
ectoderm
neural keel
presumptive brain
polster\, beak-like mass of cells
EVL enveloping layer
hypoblast
endoderm
mesoderm
axial chorda mesoderm
paraxial segmental plate
presumptive cephalic mesoderm
primordial germ cells
ventral mesoderm
presumptive blood
polster\, beak-like mass of cells
Kupffer`s vesicle
margin
yolk
oil droplets
yolk plug
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 19
embryo
ectoderm
epidermis
lens placode
olfactory placode
otic placode
presumptive CNS
neural rod
roof plate
alar plate
basal plate
floor plate
optic vesicle
pre-brain region
endoderm
EVL enveloping layer
mesenchyme
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
mesoderm
axial chorda mesoderm
lateral mesoderm
paraxial mesoderm
segmental plate
adaxial cells
lateral cells
polster
prechordal plate
presumptive cephalic mesoderm
primordial germ cells
pronephric mesoderm
ventral mesoderm
presumptive blood
notochord
sensory system
optic vesicle
tail bud
Kupffer`s vesicle
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 20
embryo
ectoderm
epidermis
lens placode
olfactory placode
presumptive CNS
forebrain
midbrain
midbrain hindbrain boundary (MHB)
hindbrain
neural tube
roof plate
alar plate
basal plate
floor plate
endoderm
EVL enveloping layer
mesenchyme
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
mesoderm
axial chorda mesoderm
lateral mesoderm
paraxial mesoderm
segmental plate
adaxial cells
lateral cells
polster
prechordal plate
presumptive cephalic mesoderm
primordial germ cells
pronephric mesoderm
ventral mesoderm
presumptive blood
notochord
sensory system
optic vesicle
tail bud
Kupffer`s vesicle
yolk
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 21
embryo
ectoderm
olfactory placode
endoderm
notochord
EVL enveloping layer
mesenchyme
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
mesoderm
axial chorda mesoderm
lateral mesoderm
paraxial mesoderm
segmental plate
adaxial cells
lateral cells
polster
prechordal plate
primordial germ cells
pronephric mesoderm
ventral mesoderm
presumptive blood
organ system
nervous system
forebrain
midbrain
midbrain hindbrain boundary (MHB)
hindbrain
neural tube
roof plate
alar plate
basal plate
floor plate
sensory system
eye
lens primordium
optic cup
otic vesicle
tail bud
Kupffer`s vesicle
yolk
body cavity
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 22
embryo
ectoderm
olfactory placode
endoderm
notochord
EVL enveloping layer
hatching gland
melanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
mesoderm
axial chorda mesoderm
lateral mesoderm
paraxial mesoderm
segmental plate
adaxial cells
lateral cells
polster
prechordal plate
primordial germ cells
pronephric mesoderm
ventral mesoderm
presumptive blood
organ system
cardiovascular system
heart primordium
nervous system
forebrain
midbrain
midbrain hindbrain boundary (MHB)
hindbrain
neural tube
roof plate
alar plate
basal plate
floor plate
sensory system
eye
lens primordium
optic cup
optic stalk
otic vesicle
tail bud
Kupffer`s vesicle
yolk
body cavity
oil droplets
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 23
embryo
ectoderm
olfactory placode
endoderm
notochord
EVL enveloping layer
hatching gland
melanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
mesoderm
axial chorda mesoderm
lateral mesoderm
paraxial mesoderm
segmental plate
adaxial cells
lateral cells
polster
prechordal plate
primordial germ cells
pronephric mesoderm
organ system
cardiovascular system
blood island
duct of Cuvier precursor
heart
nervous system
midbrain hindbrain boundary (MHB)
forebrain
telencephalon
diencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
hindbrain
metencephalon
myelencephalon
neural tube
roof plate
alar plate
basal plate
floor plate
sensory system
eye
lens
optic cup
retina
ciliary marginal zone
optic stalk
otic vesicle
tail bud
Kupffer`s vesicle
yolk
body cavity
oil droplet
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 24
embryo
ectoderm
endoderm
notochord
EVL enveloping layer
hatching gland
melanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
organ system
alimentary system
gut
proctodeum
nervous system
CNS
brain
forebrain
diencephalon
telencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
myelencephalon
rhombomeres (N4-8)
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
optic cup
retina
ciliary marginal zone
optic stalk
otic vesicle
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood island
duct of Cuvier precursor
vitello-caudal vein precursor
heart
tail bud
Kupffer`s vesicle
yolk
body cavity
oil droplet
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 25
embryo
ectoderm
endoderm
notochord
EVL enveloping layer
hatching gland
melanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
organ system
alimentary system
gut
proctodeum
liver anlage
nervous system
CNS
brain
forebrain
diencephalon
telencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
hindbrain
metencephalon
myelencephalon
rhombomeres (N4-8)
midbrain hindbrain boundary (MHB)
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
optic cup
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
optic stalk
otic system
otic vesicle
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 26
embryo
epidermis
endoderm
notochord
EVL enveloping layer
hatching gland
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
organ system
alimentary system
gut
proctodeum
liver anlage
nervous system
CNS
brain
forebrain
diencephalon
telencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
myelencephalon
rhombomeres (N4-8)
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
choroidea
optic stalk
otic system
otic vesicle
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 27
embryo
epidermis
fins
pectoral fin bud
endoderm
notochord
EVL enveloping layer
hatching gland
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
organ system
alimentary system
gut
proctodeum
liver
nervous system
CNS
brain
forebrain
diencephalon
telencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
myelencephalon
rhombomeres (N4-8)
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
choroidea
optic stalk
otic system
otic vesicle
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
E-YSL external yolk syncytial layer
I-YSL internal yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 28
embryo
epidermis
fins
pectoral fin bud
endoderm
notochord
EVL enveloping layer
hatching gland
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
somite 31
myotome somite 31
sclerotome somite 31
somite 32
myotome somite 32
sclerotome somite 32
somite 33
myotome somite 33
sclerotome somite 33
organ system
alimentary system
gut
proctodeum
pancreas
liver
nervous system
CNS
brain
forebrain
diencephalon
telencephalon
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
myelencephalon
rhombomeres (N4-8)
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
optic stalk
otic system
otic vesicle
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 29
embryo
hatching gland
epidermis
fins
pectoral fin bud
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
somite 31
myotome somite 31
sclerotome somite 31
somite 32
myotome somite 32
sclerotome somite 32
somite 33
myotome somite 33
sclerotome somite 33
somite 34
myotome somite 34
sclerotome somite 34
organ system
alimentary system
gut
proctodeum
pancreas
liver
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
optic stalk
otic system
otic vesicle
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 30
embryo
hatching gland
epidermis
fins
pectoral fin bud
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
somite 31
myotome somite 31
sclerotome somite 31
somite 32
myotome somite 32
sclerotome somite 32
somite 33
myotome somite 33
sclerotome somite 33
somite 34
myotome somite 34
sclerotome somite 34
somite 35
myotome somite 35
sclerotome somite 35
organ system
alimentary system
gut
proctodeum
pancreas
liver
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 31
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin bud
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
somite 31
myotome somite 31
sclerotome somite 31
somite 32
myotome somite 32
sclerotome somite 32
somite 33
myotome somite 33
sclerotome somite 33
somite 34
myotome somite 34
sclerotome somite 34
somite 35
myotome somite 35
sclerotome somite 35
organ system
alimentary system
oral cavity
gut
proctodeum
pancreas
liver
gall bladder
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
tectum central zone
tectum marginal zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 32
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin bud
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 13
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
oral cavity
gut
proctodeum
pancreas
liver
gall bladder
nervous system
CNS
brain
forebrain
forebrain proliferative zone
forebrain marginal zone
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
tectum central zone
tectum marginal zone
tectum proliferative zone
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
cerebellum proliferative zone
myelencephalon
rhombomeres (N4-8)
rhombic lips
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 33
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin bud
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 14
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
oral cavity
gut
proctodeum
pancreas
liver
gall bladder
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 34
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
oral cavity
gut
proctodeum
pancreas
liver
gall bladder
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 35
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
mouth
oral cavity
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 36
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
mouth
oral cavity
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 37
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
trunk mesenchyme
paraxial mesenchyme
somites
myotomes
sclerotomes
somite 1
myotome somite 1
sclerotome somite 1
somite 2
myotome somite 2
sclerotome somite 2
somite 3
myotome somite 3
sclerotome somite 3
somite 4
myotome somite 4
sclerotome somite 4
somite 5
myotome somite 5
sclerotome somite 5
somite 6
myotome somite 6
sclerotome somite 6
somite 7
myotome somite 7
sclerotome somite 7
somite 8
myotome somite 8
sclerotome somite 8
somite 9
myotome somite 9
sclerotome somite 9
somite 10
myotome somite 10
sclerotome somite 10
somite 11
myotome somite 11
sclerotome somite 11
somite 12
myotome somite 12
sclerotome somite 12
somite 13
myotome somite 13
sclerotome somite 13
somite 14
myotome somite 14
sclerotome somite 14
somite 15
myotome somite 15
sclerotome somite 15
somite 16
myotome somite 16
sclerotome somite 16
somite 17
myotome somite 17
sclerotome somite 17
somite 18
myotome somite 18
sclerotome somite 18
somite 19
myotome somite 19
sclerotome somite 19
somite 20
myotome somite 20
sclerotome somite 20
somite 21
myotome somite 21
sclerotome somite 21
somite 22
myotome somite 22
sclerotome somite 22
somite 23
myotome somite 23
sclerotome somite 23
somite 24
myotome somite 24
sclerotome somite 24
somite 25
myotome somite 25
sclerotome somite 25
somite 26
myotome somite 26
sclerotome somite 26
somite 27
myotome somite 27
sclerotome somite 27
somite 28
myotome somite 28
sclerotome somite 28
somite 29
myotome somite 29
sclerotome somite 29
somite 30
myotome somite 30
sclerotome somite 30
organ system
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 38
embryo
hatching gland
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
yolk
body cavity
oil droplet
YSL yolk syncytial layer
extraembryonic
chorion
micropyle
villi
Stage 39
larva
epidermis
fins
pectoral fin
caudal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
Stage 40
larva
epidermis
fins
pectoral fin
caudal fin
membranous fin
dorsal fin
anal fin
ventral fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
Stage 41
larva
epidermis
fins
pectoral fin
caudal fin
membranous fin
dorsal fin
anal fin
ventral fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
Stage 42
larva
epidermis
fins
pectoral fin
caudal fin
ventral fin
dorsal fin
anal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
Stage 43
larva
epidermis
fins
pectoral fin
caudal fin
ventral fin
dorsal fin
anal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud
Stage 44
larva
epidermis
fins
pectoral fin
caudal fin
ventral fin
dorsal fin
anal fin
endoderm
notochord
EVL enveloping layer
pigmentation
melanophores
guanophores
mesenchyme
head mesenchyme
mesenchyme derived from head mesenchyme
mesenchyme derived from head neural crest
organ system
locomotory system
musculature
skeleton
alimentary system
mouth
oral cavity
pharyngeal teeth
esophagus
stomach
gut
proctodeum
pancreas
liver
gall bladder
after
nervous system
CNS
brain
forebrain
telencephalon
cortex
olfactory bulb
diencephalon
pineal gland
thalamus
epithalamus
hypothalamus
pituitary
midbrain
tectum
midbrain hindbrain boundary (MHB)
hindbrain
metencephalon
cerebellum
myelencephalon
rhombomeres (N4-8)
medulla oblongata
spinal cord
roof plate
alar plate
basal plate
floor plate
PNS
peripheral sensory axons
trigeminal (V) placode
sensory system
eye
lens
lens core
lens epithelium
retina
ciliary marginal zone
neural layer
ganglion cells
inner nuclear layer
outer nuclear layer
photoreceptor cells
pigmented retinal epithelium PRE
choroidea
cornea
optic stalk
otic system
otic vesicle
semicircular canals
otoliths
olfactory system
olfactory pits
urogenital system
primordial germ cells
pronephric duct
pronephros
cardiovascular system
blood
spleen
dorsal aorta
internal carotid arteries
optic plexus
anterior cardinal vein
duct of Cuvier
vitello-caudal vein
vitello-caudal artery
pericarial cavity
heart
sinus venosus
atrium
ventricle
bulbus arteriosus
respiratory system
branchial arches
gills
swim bladder
tail bud