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.
Potato/Semi Round Pearls. Potato pearls are some of the less expensive freshwater pearls to be found on the market, but their look is anything but cheap. You can purchase potato pearls in every color of the rainbow, and craft beautiful one of a kind creations for gifts and your own collection.
Fingerlings are a type of potato named for their shape -- the potatoes are long and narrow, looking a little like fingers, rather than round or oval in shape. Like other red potatoes, red fingerling varieties hold their shape well and are low in starch.