Full Cuticle (Eponychium) of Toenail Description
[Continued from above] . . . plate together to protect the area from foreign bodies and fluids. Beneath the eponychium is the membranous pterygium, providing further protection to the skin against bacteria and infection. The eponychium folds over the top of and back in on the lower edge of the epidermal cells at the junction with the nail. Just beyond the cuticle, the nail body may be whitish or lighter in color in a small hemisphere called a lunula.