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Atlas of Human Embryos Chapter   Figure
 <   >  search results: cranial accessory nerve (CN XI) Search   Fig. 5-7-3 Fig. 6-7-4 Fig. 6-8-5 Fig. 7-2a Fig. 7-9-7 Fig. 7-9-8 Fig. 8-6-8

alar plate(s), anterior semicircular canal, artifact(s), basal plate, basilar artery, branches of posterior inferior cerebellar artery, cranial accessory nerve (CN XI), dorsal thalamus, endolymphatic sac, epithalamus, hypothalamus, metencephalon and myelencephalon junction, oculomotor nerve (CN III), otic capsule, posterior communicating artery, posterior semicircular canal, primitive sigmoid sinus, primitive transverse sinus, pyramidal tract area, raphe, region of cervical flexure, roof of rhombencoel (fourth ventricle), root of glossopharyngeal nerve (CN IX), root of hypoglossal nerve (CN XII), root of vagus nerve (CN X), sulcus dorsalis, sulcus ventralis, tegmentum of pons, third ventricle, trochlear nerve (CN IV), ventral thalamus, vertebral artery

A section through the met- and myelencephalon junction.

Observe:
1. The tegmentum of the pons area of the metencephalon.
2. The dorsal edge of the otic capsule showing the junction of the anterior and posterior semicircular canals.
3. The region of the cervical flexure containing the rootlets of the hypoglossal nerve.
4. The rootlets of cranial nerve IX arising in series with cranial nerve X.
5. The raphe separating the pyramidal tract areas in the ventral part of the myelencephalon.


Keywords: alar plate(s), anterior semicircular canal, artifact(s), basal plate, basilar artery, branches of posterior inferior cerebellar artery, cranial accessory nerve (CN XI), dorsal thalamus, endolymphatic sac, epithalamus, hypothalamus, metencephalon and myelencephalon junction, oculomotor nerve (CN III), otic capsule, posterior communicating artery, posterior semicircular canal, primitive sigmoid sinus, primitive transverse sinus, pyramidal tract area, raphe, region of cervical flexure, roof of rhombencoel (fourth ventricle), root of glossopharyngeal nerve (CN IX), root of hypoglossal nerve (CN XII), root of vagus nerve (CN X), sulcus dorsalis, sulcus ventralis, tegmentum of pons, third ventricle, trochlear nerve (CN IV), ventral thalamus, vertebral artery

Source: Atlas of Human Embryos.