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alar plate(s), basal plate, basis pedunculi area, cranial accessory nerve (CN XI), floor plate (ventral), junction of endolymphatic diverticulum and vestibular pouch, lateral groove, median sulcus of 4th ventricle, metencephalon, myelencephalic artery, myelencephalon, origin of glossopharyngeal nerve (CN IX), otic capsule condensation, posterior cerebral plexus, region of cephalic flexure, roof plate (dorsal), root of oculomotor nerve (CN III), spinal accessory nerve (CN XI), spinal part of accessory nerve (CN XI), sulcus limitans, superior vagal ganglion, tectum, tegmentum, trochlear nerve (CN IV), vestibular pouch

A section through the region of the cephalic flexure, rootlets of the oculomotor nerve and origin of the glossopharyngeal nerve.

Observe:
1. The cranial and spinal parts of the accessory nerve and the superior ganglion of the vagus nerve.
2. The junction of the endolymphatic diverticulum with the medial wall of the vestibular pouch.
3. The lateral groove in the lateral wall of the vestibular pouch which is surrounded by the otic capsule condensation.
4. The three subdivisions of the mesencephalon: tectum, tegmentum and basis pedunculi area.


Keywords: alar plate(s), basal plate, basis pedunculi area, cranial accessory nerve (CN XI), floor plate (ventral), junction of endolymphatic diverticulum and vestibular pouch, lateral groove, median sulcus of 4th ventricle, metencephalon, myelencephalic artery, myelencephalon, origin of glossopharyngeal nerve (CN IX), otic capsule condensation, posterior cerebral plexus, region of cephalic flexure, roof plate (dorsal), root of oculomotor nerve (CN III), spinal accessory nerve (CN XI), spinal part of accessory nerve (CN XI), sulcus limitans, superior vagal ganglion, tectum, tegmentum, trochlear nerve (CN IV), vestibular pouch

Source: Atlas of Human Embryos.