This drawing depicts the left hemisphere of the cerebral cortex. Which letter points to the area where the signals for voluntary muscle movements are initiated?

A) frontal lobe and primary motor cortex
B) somatosensory cortex
C) primary visual cortex
D) primary auditory cortex

Question

This drawing depicts the left hemisphere of the cerebral cortex. Which letter points to the area where the signals for voluntary muscle movements are initiated?

A) frontal lobe and primary motor cortex 
B) somatosensory cortex 
C) primary visual cortex 
D) primary auditory cortex

Quizplus · Accepted Answer

The area where the signals for voluntary muscle movements are initiated is the frontal lobe and primary motor cortex, which is located in the precentral gyrus of the frontal lobe. This area is responsible for controlling voluntary movements of skeletal muscles on the opposite side of the body.

This Drawing Depicts the Left Hemisphere of the Cerebral Cortex