Hyponychium

Hyponychium
Nail anatomy
Details
Identifiers
Latin	Hyponychium
Code	TH A.16.01.011
*Anatomical terminology* [edit on Wikidata]

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—aka 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.

References

Skin and related structures

Skin

Epidermis	Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum basale

Basement membrane	Basal keratinocyte Lamina lucida Lamina densa

Dermis	Papillary Dermal papillae Reticular

Root sheath	Outer root sheath Inner root sheath Henle's layer Huxley's layer

Hair shaft	Cuticle Cortex Medulla Bulb with matrix cells Hair follicle

Muscle	Arrector pili muscle

Pilosebaceous unit	Hair sebaceous gland

Nail

This article is issued from Wikipedia - version of the 7/30/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Hyponychium

See also

References