Hyponychium
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Hyponychium
Hyponychium (pronunciation: /ˌhaɪpəˈnɪkiəm/) is a term used in anatomy and dermatology to describe the area of epidermis under the free edge of the nail plate. It forms a seal that protects the nail bed and the matrix from external harm, including bacteria and trauma.
Etymology
The term "Hyponychium" is derived from the Greek words "hypo" meaning under, and "onyx" meaning nail.
Related Terms
- Eponychium: The small band of skin at the base of the nail that appears to be the continuation of the nail wall. It is not to be confused with the cuticle.
- Nail plate: The hard and translucent portion of the nail, composed of keratin.
- Nail bed: The skin beneath the nail plate.
- Nail matrix: The part of the nail bed that is at the base of the nail, and is responsible for producing cells that become the nail plate.
See Also
External links
- Medical encyclopedia article on Hyponychium
- Wikipedia's article - Hyponychium
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