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Carnegie Stage Section
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C-1 spinal nerve, C-2 spinal ganglion, anterior dural venous plexus, atlanto-occipital joint, basilar artery, cerebral aqueduct (mesocoele), decussation, edge of median sulcus of rhombencoel (fourth ventricle), hypoglossal nerve (CN XII), hypothalamus, intermediate zone, junction of cerebral aqueduct and third ventricle, marginal zone, neural arch of C-1 vertebra (atlas), occipital condyle, root of facial nerve (CN VII), root of trigeminal nerve (CN V), saccule(s), subarachnoid space, vagus nerve (CN X), ventricular zone
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Carnegie Embryo #9325   |   Location: 8-4-3

Keywords: C-1 spinal nerve, C-2 spinal ganglion, anterior dural venous plexus, atlanto-occipital joint, basilar artery, cerebral aqueduct (mesocoele), decussation, edge of median sulcus of rhombencoel (fourth ventricle), hypoglossal nerve (CN XII), hypothalamus, intermediate zone, junction of cerebral aqueduct and third ventricle, marginal zone, neural arch of C-1 vertebra (atlas), occipital condyle, root of facial nerve (CN VII), root of trigeminal nerve (CN V), saccule(s), subarachnoid space, vagus nerve (CN X), ventricular zone

Source: The Virtual Human Embryo.