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Carnegie Stage Section
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Abbreviation Key

a
artery
aa
arteries
ant
anterior
a-v
atrio-ventricular
C
Cervical
Co
Coccygeal
CN
Cranial Nerve
D
diencephalic neuromere or diencephalon
dm
dermatomyotome
inf
inferior
int
internal
L
Lumbar
lat
lateral
lt
left
M
mesencephalic neuromere or mesencephalon
med
medial
n
nerve
O
Occipital
P
prosencephalon
post
posterior
prim
primordial
R
rhombencephalon
Rh
rhombomere
rt
right
S
Sacral
T
Thoracic
v
vein
vv
veins
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C-1 spinal ganglion, accessory nerve (CN XI), anterior semicircular duct, basilar artery, cerebral aqueduct (mesocoele), decussation, exoccipital, left posterior cerebral artery, left vertebral artery, oculomotor nerve (CN III), otic capsule cartilage, posterior semicircular duct, right vertebral artery, root of glossopharyngeal nerve (CN IX), subarachnoid space, superior ganglion of vagus nerve (CN X), tectum of mesencephalon, tegmentum of mesencephalon, trochlear nerve (CN IV)
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Carnegie Embryo #9325   |   Location: 7-3-3

Keywords: C-1 spinal ganglion, accessory nerve (CN XI), anterior semicircular duct, basilar artery, cerebral aqueduct (mesocoele), decussation, exoccipital, left posterior cerebral artery, left vertebral artery, oculomotor nerve (CN III), otic capsule cartilage, posterior semicircular duct, right vertebral artery, root of glossopharyngeal nerve (CN IX), subarachnoid space, superior ganglion of vagus nerve (CN X), tectum of mesencephalon, tegmentum of mesencephalon, trochlear nerve (CN IV)

Source: The Virtual Human Embryo.