Question

what are the two main components of the nervous system? a. the brain nervous system and the spinal cord nervous system b. the parasympathetic nervous system and the brain nervous system c. the cranial nervous system and the parasympathetic nervous system d. the central nervous system and the peripheral nervous system please select the best answer from the choices provided
a
b
c
d

Explanation:

The nervous system is divided into two main parts: the central nervous system (CNS), which includes the brain and spinal cord, and the peripheral nervous system (PNS), which consists of nerves outside the CNS. Option A incorrectly names components; B and C mix different subdivisions (parasympathetic is part of the autonomic PNS, cranial nerves are part of PNS). Only D correctly identifies the two main components.

Answer:

D. the central nervous system and the peripheral nervous system