Hyponychium
The hyponychium is the area of epithelium, particularly the thickened portion, underlying the free edge of the nail plate on the nail. Its proximal border is immediately distal to distal limit of nail bed—a.k.a. the onychodermal band (the line along the interface of the nail bed and the nail plate). Its distal border the free edge of the nail plate—or where that edge would project downwards onto the epidermis.
| Hyponychium | |
|---|---|
 Nail anatomy | |
| Details | |
| Identifiers | |
| Latin | Hyponychium |
| TA | A16.0.01.011 |
| FMA | 77860 |
| Anatomical terminology | |
It is sometimes called the quick as in the phrase 'cutting to the quick'.
See also
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