The insulating layer of fatty material that covers the axon of many neurons is called the:
A)axon sheath.
B)myelin sheath.
C)glial cover.
D)glial insulator.

Question

Quizplus · Accepted Answer

The fatty insulating layer that covers the axon of many neurons is called the myelin sheath. The myelin sheath is formed by specialized glial cells called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The myelin sheath helps to increase the speed and efficiency of nerve impulse transmission along the axon.

The Insulating Layer of Fatty Material That Covers the Axon