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.
A rather small pearl that has a very nice silvery sheen to it. It can be sold cheaply to shops. Pearl (Japanese: ãããã Pearl) is an item introduced in Generation II that can be bought for 6000 (650 in Generation II and Generation IV) at PokÃ© Marts and sold for 700. It is a shiny sphere that can be mainly found at beaches.