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Atlas of Human Embryos Chapter   Figure
 <   >  search results: edge of nasopharynx Search   Fig. 8-7-9

alisphenoid, auricle, chorda tympani, conjunctival sac, edge of nasal cavity (nasal sac), edge of nasopharynx, exoccipital bone, external acoustic meatus, facial nerve (CN VII), glossopharyngeal nerve (CN IX), hyaloid vessel(s), hypoglossal nerve (CN XII), inferior rectus muscle, internal carotid artery, internal jugular vein, jugular foramen, junction of vertebral arteries, lower eyelid fold, meatal plug, medial rectus muscle, medulla oblongata, olfactory epithelium, otic ganglion, pars caeca retinae, pars optica retinae, primordial inferior olivary nucleus, primordial nucleus of spinal tract of trigeminal nerve (CN V), pterygopalatine ganglion, sensory decussation area, spinal accessory nerve (CN XI), spinal tract of trigeminal nerve (CN V) area, superior nasal concha, tympanic membrane, upper eyelid fold, vagus nerve (CN X), vitreous body

A section through the medulla oblongata and the cranial edge of the nasal cavity and nasopharynx.

Observe:
1. The eyelid folds, conjunctival sac and two parts of the inner layer of the optic cup.
2. The pterygopalatine and otic ganglia.
3. The external acoustic meatus surrounded by the auricle and terminating at the tympanic membrane.
4. The junction of the vertebral arteries forming the basilar artery on the ventral aspect of the medulla oblongata.
5. The origin of the internal jugular vein at the jugular foramen and its relation to cranial nerves IX, X and XI.


Keywords: alisphenoid, auricle, chorda tympani, conjunctival sac, edge of nasal cavity (nasal sac), edge of nasopharynx, exoccipital bone, external acoustic meatus, facial nerve (CN VII), glossopharyngeal nerve (CN IX), hyaloid vessel(s), hypoglossal nerve (CN XII), inferior rectus muscle, internal carotid artery, internal jugular vein, jugular foramen, junction of vertebral arteries, lower eyelid fold, meatal plug, medial rectus muscle, medulla oblongata, olfactory epithelium, otic ganglion, pars caeca retinae, pars optica retinae, primordial inferior olivary nucleus, primordial nucleus of spinal tract of trigeminal nerve (CN V), pterygopalatine ganglion, sensory decussation area, spinal accessory nerve (CN XI), spinal tract of trigeminal nerve (CN V) area, superior nasal concha, tympanic membrane, upper eyelid fold, vagus nerve (CN X), vitreous body

Source: Atlas of Human Embryos.