Nails are plates of keratinized cells containing hard keratin

The slightly arched fingernails and toenails, more properly referred to as nail plates, rest on nail beds. The nail bed consists of epithelial cells that are continuous with the stratum basale and stratum spinosum of the epidermis (Fig. 14.19).

The proximal part of the nail, the nail root, is buried in a fold of epidermis and covers the cells of the germinative

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