User:Yanping Nora Soong/M1/Anatomy Exam 5

=Core=

Cranial nerves

 * Hypoglossal nerve (XII) innervates all the muscles of the tongue EXCEPT for the palatoglossus muscle (innervated by CN X / vagus nerve)

Facial nerve branches on the face

 * Five major facial branches (at parotid plexus) – from superior to inferior:
 * Temporal branch
 * Zygomatic branch
 * Buccal branch
 * Marginal mandibular branch
 * Cervical branch

Other extracranial nerve branches

 * Posterior auricular nerve which controls movements of some of the scalp muscles around the ear
 * Branch to posterior belly of digastric muscle
 * Branch of the stylohyoid muscle

Innervation
The vocal folds are innervated by the recurrent laryngeal nerves (motor).

The internal superior laryngeal nerve gives sensory innervation to the mucosa of the larynx approximately between the root of the tongue and the start of the vocal folds.


 * Vestibular folds
 * Piriform recess

=Clinical correlates=
 * Le Fort fracture of skull