Myelination of the axon
A)protects the neuron from wear and tear.
B)waterproofs the axon from cerebrospinal fluid.
C)increases the speed of the nerve impulse along the axon.
D)keeps the axon warm so that it is sensitive to stimulation.

Question

Quizplus · Accepted Answer

Myelination increases the speed of nerve impulses along the axon by allowing the signal to "jump" from one node of Ranvier to the next, rather than requiring transmission along the entire length of the axon. This is known as saltatory conduction. Myelination does not protect the neuron from wear and tear, waterproof the axon, or keep the axon warm.

Myelination of the Axon