AP PSYCHOLOGY

Detailed explanation-1: -Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. This myelin sheath allows electrical impulses to transmit quickly and efficiently along the nerve cells.

Detailed explanation-2: -A myelin sheath is a sleeve (sheath) that’s wrapped around each nerve cell (neurons). It’s a protective layer of fat (lipids) and protein that coats the main “body” section of a neuron called the axon.

Detailed explanation-3: -Myelin sheath is a fatty layer of insulation substance that covers some axons. Myelin sheath facilitates the faster transmission of nerve impulses.

Detailed explanation-4: -Most of the axons in the central nervous system are wrapped in myelin, a substance rich in lipids (fatty substances) and proteins. Like the coating around an electrical wire, myelin insulates and protects the axon and helps speed nerve transmission.

Detailed explanation-5: -Myelination is the formation of a myelin sheath, therefore axons which are covered by this insulating sleeve of protection are said to be myelinated axons. If an axon is not surrounded by myelin sheath, it is said to be unmyelinated.