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Carnegie Stage Section
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alar plate of mesencephalon, alar plate of metencephalon, alar plate of myelencephalon, cerebral aqueduct (mesocoele), isthmus of rhombencephalon, osteogenic layer, rhombencoel (fourth ventricle), roof plate, roof plate of mesencephalon, subarachnoid space, trochlear nerve (CN IV), vascular plexus
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Carnegie Embryo #9325   |   Location: 3-3-2

Keywords: alar plate of mesencephalon, alar plate of metencephalon, alar plate of myelencephalon, cerebral aqueduct (mesocoele), isthmus of rhombencephalon, osteogenic layer, rhombencoel (fourth ventricle), roof plate, roof plate of mesencephalon, subarachnoid space, trochlear nerve (CN IV), vascular plexus

Source: The Virtual Human Embryo.