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: -The myelin sheath is a protective membrane that wraps around part of certain nerve cells. Myelin also affects how fast signals travel through those nerve cells.

Detailed explanation-3: -The myelin sheath itself is the inner portion of these wrappings (approximately 100 layers of plasma membrane), and the outermost layer that contains the nucleus and cytoplasm is the neurilemma (also called the neurolemma, sheath of Schwann, and Schwann’s sheath).

Detailed explanation-4: -The long slender projection of a neuron, also known as an axon, which conducts impulse away from the cell body remains covered by a fatty sheath known as myelin sheath.

Detailed explanation-5: -Myelin is made by oligodendrocytes in the central nervous system (CNS) and Schwann cells in the peripheral nervous system (PNS).