The __________ is a fatty coating that insulates the axons of some cells in the nervous system.

Question

Quizplus · Accepted Answer

The fatty coating that insulates the axons of some cells in the nervous system is referred to as the myelin sheath. The myelin sheath is formed by a type of glial cell called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The myelin sheath helps to increase the speed of electrical impulses traveling along the axons. Nodes of Ranvier are the gaps between myelin sheaths and dendritic spines are protrusions on the surface of dendrites.

The __________ Is a Fatty Coating That Insulates the Axons