| A | B |
|---|
| The technical term for nail | onyx |
| Protein substance that forms the base of all horny tissue | keratin |
| The nail is an _______ of the skin | appendage |
| Technical term for nail disease | onychosis |
| The portion of skin on which nail body rests | nail bed |
| At base of nail, imbedded underneath the skin | nail root |
| Part of nail bed that extends beneath nail root and contains nerves, lymph, and blood vessels to nourish | matrix |
| Lunula is also known as | half-moon |
| Overlapping skin around the nail; loose and pliable | cuticle |
| Extension of cuticle at base of nail body that partly overlaps the lunula | eponychium |
| Epidermis under the free edge | hyponichium |
| Epidermis surrounding entire nail border | perionychium |
| Folds of skin overlapping sides of | nail walls |
| Slits or tracks on each side of nail upon which nail moves as it grows | nail grooves |
| Deep fold of skin in which nail root is embedded | mantle |
| Wavy ridges | corrugations |
| Depressions running either lengthwise or crosswise | furrows |
| White spots | leuconychia |
| overgrowth of nail | onychauxis or hypertrophy |
| Atrophy or wasting away of nail | onychatrophia |
| Forward growth of cuticle that adheres to base of nail | pterygium |
| Bitten nails | onychophagy |
| Split or brittle nails | onychorrhexis |
| Split cuticle around nail | hangnail (agnail) |
| Noticebley thin, white nail plate, more flexible than normal | eggshell nails |
| Term for vegetable parasites including fungus and mold | fungi |
| Ringworm | onychomycosis or tinea unguium |
| Infection, inflammatory condition of tissues surrounding the nail | paronychia or felon |
| Inflammation of nail matrix accompanied by pus | onychia |
| Ingrown nails | onychocryptosis |
| Periodic shedding on one or more nails, in whole or in part | onychoptosis |
| Loosening of nail without shedding | onycholysis |
| Swelling of the nail | onychophyma |
| Growth of horny epithelium in nail bed | onychophosis |
| Enlarged and increased curvature of the nails | onychogryposis |
