The process through which axons become coated with a fatty substance that speeds up the transmission of nerve impulses is called:

A) myelination.
B) action potential.
C) transmission.
D) lateralization.

Myelination

The process of forming a myelin sheath around the nerves to increase the speed at which electrical impulses are conducted.

Axons

Long, threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.

Action Potential

A rapid and temporary electrical signal that travels along the membrane of a neuron, facilitating neurotransmission.