origin and course

Nucleus in medulla oblongata
Exits skull via jugular foramen
Passes between internal and external carotid arteries
Passes through anterior triangle

important supply

taste and general sensation to posterior 1/3 of tongue
parasympathetic supply to Parotid gland
general sensation to oropharynx, middle ear
stylopharyngeus
gag reflex - Cranial nerve reflexes

lesion

mechanism

rare: carotid endarterectomy, tonsillectomy

clinical presentation

absent gag reflex, presumably

#cranial-nerves