On an Axon,the Small Spacings Between the Insulation Surrounding the Axon

Question

On an axon,the small spacings between the insulation surrounding the axon are called
A) trigger zones.
B) axons.
C) synapses.
D) dendrites.
E) nodes of Ranvier.

Accepted Answer

The small spacings between the insulation surrounding the axon are called nodes of Ranvier. The insulation is called myelin, and the nodes of Ranvier are the gaps between the myelin where the axon membrane is exposed. These nodes are important for saltatory conduction, a process by which nerve impulses jump from one node to the next, making the transmission of nerve impulses faster.