Which statement reflects appropriate understanding of the anatomy and physiology of the nervous system?
A) The brain is a network of nerve cells called axons.
B) The central nervous system consists of the brain only.
C) The peripheral nervous system consists of the cranial nerves and the spinal nerves.
D) Gray matter consists of axons that are coated with myelin,which allows nerve impulses to travel rapidly.

Question

Quizplus · Accepted Answer

The peripheral nervous system consists of the cranial nerves and the spinal nerves. This is the only statement that accurately reflects the anatomy and physiology of the nervous system. The brain is not made up entirely of axons (A), the central nervous system includes the spinal cord in addition to the brain (B), and gray matter consists of nerve cell bodies, dendrites, and unmyelinated axons (not axons coated with myelin) (D).

Which Statement Reflects Appropriate Understanding of the Anatomy and Physiology