What is the single most appropriate option?

A 73-year-old man who is recovering from surgery on the left carotid artery in his neck. He has slurred speech of his tongue, the tip deviated to the left.

What is the single most appropriate option?
A . Accessory nerve
B . Hypoglossal nerve
C . Glossopharyngeal nerve
D . Facial nerve
E . Vagus nerve

Answer: B

Explanation:

Testing function of the nerve is performed by asked the subject to stick their ton out. If there is a loss of innervation to one side, the tongue will curve toward the affected side, due to unopposed the opposite genioglossus muscle. If this is the result of. A lower motor neuron lesion, the tongue will be curve damaged side, combined with the presence of fasciculations or atrophy.

However, if the deficit is caused by a neuron lesion, the tongue will be curved away from the side of the cortical damage, without the presence of fa or atrophy.