The two main components of the human nervous system are the ________ nervous system and the ________ nervous system.
A) central; peripheral
B) spinal; endocrine
C) sympathetic; parasympathetic
D) somatic; autonomic

Question

Quizplus · Accepted Answer

The central nervous system consists of the brain and spinal cord while the peripheral nervous system consists of all the nerves outside of the brain and spinal cord. Therefore, choice A (central; peripheral) is the correct answer. Choice B (spinal; endocrine) is incorrect because the endocrine system is not part of the nervous system. Choice C (sympathetic; parasympathetic) and choice D (somatic; autonomic) are both components of the peripheral nervous system, but they are subdivisions of the autonomic nervous system rather than the two main components of the entire nervous system.

The Two Main Components of the Human Nervous System Are