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Carnegie Stage Section
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C-1 spinal ganglion, C-1 ventral root, alar plate(s), anterior semicircular duct, basal plate, central canal, cephalic edge of exoccipital, cerebral aqueduct (mesocoele), common crus, floor plate, median sulcus, mesencephalon, metencephalon, myelencephalon, otic capsule cartilage, posterior semicircular duct, region of mesencephalic (cephalic) flexure, rhombencoel (fourth ventricle), roof of rhombencoel (fourth ventricle), roof plate, root of hypoglossal nerve (CN XII), root of oculomotor nerve (CN III), spinal accessory nerve (CN XI), spinal cord, subarachnoid space, sulcus limitans, trochlear nerve (CN IV)
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Carnegie Embryo #9325   |   Location: 6-4-3

Keywords: C-1 spinal ganglion, C-1 ventral root, alar plate(s), anterior semicircular duct, basal plate, central canal, cephalic edge of exoccipital, cerebral aqueduct (mesocoele), common crus, floor plate, median sulcus, mesencephalon, metencephalon, myelencephalon, otic capsule cartilage, posterior semicircular duct, region of mesencephalic (cephalic) flexure, rhombencoel (fourth ventricle), roof of rhombencoel (fourth ventricle), roof plate, root of hypoglossal nerve (CN XII), root of oculomotor nerve (CN III), spinal accessory nerve (CN XI), spinal cord, subarachnoid space, sulcus limitans, trochlear nerve (CN IV)

Source: The Virtual Human Embryo.