Neurons controlling voluntary movement of the head are located in the
A) ventral portions of the precentral gyrus.
B) dorsal portions of the postcentral gyrus.
C) supplementary motor area (SMA).
D) cerebellum.

Question

Quizplus · Accepted Answer

The precentral gyrus, also known as the primary motor cortex, is responsible for controlling voluntary movement of the body, including the head. The ventral (lower) portions of the precentral gyrus specifically control movement of the head, face, and neck.

Note: Choice C (supplementary motor area) is also involved in planning and coordinating movement of the head, but it is not the primary location for controlling voluntary movement of the head.

Neurons Controlling Voluntary Movement of the Head Are Located in the