| Term | Definition |
|---|
| Nail | An appendage of the skin; the horny, translucent, protective plate that protects the tips of fingers and toes. It is part of the integumentary system. |
| Onyx | The technical term for the nail. |
| Keratin | A protein that forms the base of all horny tissue. |
| Nail plate | Contains no nerves or blood vessels. Horny nail plate or nail body. |
| Nail Bed | Skin where nail plate rests. |
| Matrix | Where nail is formed. |
| Cuticle | The dead, colorless tissue attached to nail plate |
| Eponychium | The extension of the cuticle at the base of nail body that partly overlaps the lunula. |
| Hyponychium | the thickened skin beneath free edge. |
| Specialized ligaments | A tough band of fibrous tissue that connects bones or holds an organ in place. |
| Nail folds | Form nail grooves |
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