The somatic motor branch of the peripheral nervous system
A)exits the spinal cord through the dorsal root.
B)regulates heart rate.
C)is the afferent branch of the peripheral nervous system.
D)is an efferent branch of the peripheral nervous system.

Question

Quizplus · Accepted Answer

The somatic motor branch of the peripheral nervous system is responsible for controlling voluntary movement of skeletal muscles and is an efferent branch of the peripheral nervous system, meaning it carries information away from the central nervous system to the muscles. It does not exit the spinal cord through the dorsal root, which is part of the afferent branch of the peripheral nervous system. It also does not regulate heart rate.

The Somatic Motor Branch of the Peripheral Nervous System