The two main divisions of the nervous system are the ____ and the ____.
A) brain; spinal cord
B) muscles; organs
C) parasympathetic nervous system; sympathetic nervous system
D) central nervous system; peripheral nervous system

Question

Quizplus · Accepted Answer

The central nervous system (CNS) consists of the brain and spinal cord, while the peripheral nervous system (PNS) includes all the other nerves in the body. Therefore, D is the correct answer. A is incorrect because it refers to two parts of the CNS. B is incorrect because muscles and organs are not divisions of the nervous system. C is incorrect because the parasympathetic and sympathetic nervous systems are part of the PNS, not the main divisions of the nervous system.

The Two Main Divisions of the Nervous System Are the ____