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.
Pearl Onion Also known as baby onions or button onions, pearl onions are a variety of tree onion, often used for pickling as cocktail onions. Pearl onions are also used in recipes like succotash and onion relish because of their sweet, mild flavor and their attractive, diminutive size.he flesh loses its purplish color when the onion is cooked. Red wing Onion A tasty variety of red onion. Salad Onion Scallion onion Also known as, spring onion, salad onion, or green onion, scallions are milder than other onions and are often used in Asian recipes and salad recipes amongst others.