Question

mixed cranial nerve
which cranial nerve is generally thought of as a mixed nerve?
hypoglossal nerve (xii)
vestibulocochlear nerve (viii)
glossopharyngeal nerve (ix)
accessory nerve (xi)

Explanation:

A mixed cranial nerve has both sensory and motor functions. The hypoglossal nerve (XII) is mainly motor (controls tongue muscles). The vestibulocochlear nerve (VIII) is mainly sensory (hearing and balance). The accessory nerve (XI) is mainly motor (controls neck and shoulder muscles). The glossopharyngeal nerve (IX) has sensory functions (taste from posterior third of tongue, monitoring blood pressure and oxygen levels in carotid body and sinus) and motor functions (controls stylopharyngeus muscle for swallowing).

Answer:

Glossopharyngeal nerve (IX)