Which of the following findings is most likely to be caused by loss of function of right cranial nerve XII?
A)Deviation of the tongue to the left side with protrusion
B)Deviation of the tongue to the right side with protrusion
C)Loss of sweet taste on the right side of the tongue
D)Loss of salty taste on the right side of the tongue

Question

Quizplus · Accepted Answer

The right cranial nerve XII (hypoglossal nerve) controls the muscles of the tongue on the right side. Loss of function in this nerve would lead to weakness on the right side of the tongue. When the tongue is protruded, it would deviate towards the weakened (right) side because the muscles on the left side are pushing it out unopposed.

Which of the Following Findings Is Most Likely to Be