a white, phospholipid, segmented covering, formed by neurolemmocytes (Schwann cells), around the axons and the dendrites of many peripheral neurons
Stacked specialized cell membrane that forms an insulating layer around vertebrate axons and increases the speed of impulse conduction. ( Figures 21-15 and 21-16)
(MI-eh-lihn sheth) A white, segmented insulative cover over the axons of many peripheral neurons that is produced by Schwann cells. A neuron axon that is covered by the myelin sheath is said to be myelinated.