| A | B |
|---|
| Matrix | nail plate formed, this area is composed of matrix cell that produce the nail plate |
| Nail bed | living skin that support the nail plate as it grow toward the free edge |
| Nail plate | hardened kertain plate that |
| Sidewall | lateral nail fold, the fold of skin overlapping the side of the nail |
| Psnoriasis | red patched covered with sliver-white scale |
| Collagen | fibrous potein that gives the skin form and strength |
| Dermis | known as derma, corium, cutis, or true skin, underlying or inner layer of the skin |
| epidemis | outmost and thinnest layer of the skin |
