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Carnegie Stage Section
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accessory nerve (CN XI), cerebral aqueduct (mesocoele), endolymphatic duct, endolymphatic sac, mesencephalon, obex, osteogenic layer, region of cervical flexure, rhombencoel (fourth ventricle), root of vagus nerve (CN X), trochlear nerve (CN IV)
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Carnegie Embryo #9325   |   Location: 5-4-3

Keywords: accessory nerve (CN XI), cerebral aqueduct (mesocoele), endolymphatic duct, endolymphatic sac, mesencephalon, obex, osteogenic layer, region of cervical flexure, rhombencoel (fourth ventricle), root of vagus nerve (CN X), trochlear nerve (CN IV)

Source: The Virtual Human Embryo.