Question

during your examination of the throat, you ask your patient to stick their tongue out and say \ahh\. you notice that his tongue deviates to one side. this finding warrants more careful evaluation of cranial nerve. ix x xi xii

Explanation:

The hypoglossal nerve (cranial nerve XII) is responsible for the motor function of the tongue. When there is a lesion or dysfunction of the hypoglossal nerve, the tongue will deviate to the side of the lesion. Cranial nerve IX (glossopharyngeal nerve) is involved in taste, swallowing, and salivation. Cranial nerve X (vagus nerve) is involved in many functions including speech, swallowing, and regulation of internal organs. Cranial nerve XI (accessory nerve) is involved in the movement of the trapezius and sternocleidomastoid muscles.

Answer:

XII