A region on the medial surface of each cerebral hemisphere that brings about complex patterns of movement, such as opening and closing the hands, is the
A)angular gyrus
B)premotor cortex
C)posterior parietal cortex
D)supplemental motor area
E)prefrontal association area

Question

Quizplus · Accepted Answer

The supplemental motor area, which is located on the medial surface of each cerebral hemisphere, plays a role in coordinating complex patterns of movement, such as opening and closing the hands. Therefore, choice D is the best answer. Choices A, B, C, and E are not involved in this particular function. For example, the angular gyrus is involved in language and reading comprehension, the premotor cortex helps plan and initiate movements, the posterior parietal cortex is involved in spatial awareness and processing sensory information, and the prefrontal association area is involved in decision-making, working memory, and social behavior.

A Region on the Medial Surface of Each Cerebral Hemisphere