Upon protrusion,a patient's tongue deviates to one side,which is evidence of:
A)unilateral lower motor neuron damage
B)bilateral lower motor neuron damage
C)unilateral upper motor neuron damage
D)bilateral upper motor neuron damage
E)both A and C,depending on the side of the lesion

Question

Quizplus · Accepted Answer

A patient with a unilateral upper motor neuron lesion to cranial nerve XII will show tongue deviation to the side contralateral to the lesion,whereas in a unilateral lower motor lesion,the tongue will deviate to the ipsilateral side.

Upon Protrusion,a Patient's Tongue Deviates to One Side,which Is Evidence