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Longitudinal section through nail and its nail groove (sulcus). (Eponychium labeled at upper left.)
Gray's subject #234 1067
Dorlands/Elsevier e_13/12339446

The eponychium or cuticle in human anatomy refers to the thickened layer of skin surrounding fingernails and toenails.

The function is to protect the area between the nail and epidermis from exposure to harmful bacteria.

Beneath the cuticle is a thin layer of pterygium.

The vascularization pattern is similar to that of perionychium.[1]


  1. ^ Sangiorgi S, Manelli A, Congiu T, et al (2004). "Microvascularization of the human digit as studied by corrosion casting". J. Anat. 204 (2): 123–31. doi:10.1111/j.1469-7580.2004.00251.x. PMID 15032919.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Eponychium". A list of authors is available in Wikipedia.
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