Question

Muscles under the peripheral portion of the central nervous system (CNS) are under ________.
A. Unconscious or involuntary control
B. Conscious or voluntary control
C. The control of the autonomic nervous system
D. All of the above

Answer 1

D because
A nerve may be sensory, motor or sensory-motor (mixed). There are three types of nerve fibers in a mixed nerve that include:
Sensory nerve fibers (afferent fibers)
Motor nerve fibers (efferent fibers)
Autonomic nerve fibers (autonomic fibers)

Answer 2

All of the above