Stimulation of a neuron that terminates in the superior region of the left postcentral gyrus would produce
A) a muscle twitch in the right leg.
B) a sensation in the right leg.
C) a muscle twitch in the lips.
D) a sensation in the lips.
E) both sensations and muscle twitches in the right leg.

Question

Quizplus · Accepted Answer

The postcentral gyrus is the primary somatosensory cortex, responsible for processing sensory information. Stimulation here would produce a sensation, not a muscle twitch. The left hemisphere controls the right side of the body, so the sensation would be in the right leg.

Stimulation of a Neuron That Terminates in the Superior Region