Question

The nervous system is composed of the central nervous system and the peripheral nervous system, which work together to maintain homeostasis in the body. Identify the definitions of these two systems.

a. The nerve cells outside the brain and spinal cord.
b. The part of the nervous system made of two structures: the brain and the spinal cord.
c. Both a and b.
d. Neither a nor b.

Answer 1

The nervous system includes the central nervous system, made up of the brain and spinal cord, and the peripheral nervous system, comprising the nerve cells outside the CNS that connect to the body.

Step-by-step explanation:

The nervous system is categorized into the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS comprises the brain and spinal cord and is responsible for processing and coordinating information. Conversely, the PNS encompasses all nerve cells outside the brain and spinal cord, connecting the CNS to muscles, organs, and senses. It includes nerves that extend throughout the body, facilating communication between the CNS and the rest of the body. The PNS can be further divided into the somatic nervous system, which controls voluntary movements, and the autonomic nervous system, which regulates involuntary functions.