Question

Skeletal and smooth muscles move when nerve impulses sent from What stimulate the muscle fibers telling them to either contract or relax
A.PNS
B.head
C. CNS

Answer 1

Answer: The correct answer is C; CNS.

Explanation:

The CNS is short of the central nervous system. This system sends nerve impulses to stimulate both the skeletal and smooth muscles making them move, contract, and relax. The nervous system is made up of both the central nervous system and the peripheral nervous system. The main organs in the CNS are the spinal cord and the brain. The central nervous system is comprised of billions of nerve cells. The CNS controls bodily functions, your thoughts, and even your memory.