Question

The _____ is the root of the nail from which keratinized cells grow.

Answer 1

Nail matrix

Step-by-step explanation:

Nails are composed of layers of dead keratinized epidermal cells that are tightly packed. A nail body, a free edge, and a nail root together make a nail. Nail root is the part of the mail that is buried into the skin folds.

The nail matrix is the part of the epithelium that is present near the nail root. New nail cells are formed by mitotic divisions in the superficial cells of the nail matrix. The cells are keratinized and are arranged in tightly packed plates to make the nail body and free edge.

Answer 2

The nail matrix is the root of the nail from which keratinized cells grow. It is the formative layer of cells at the base of the fingernail or toenail. This tissue consists of rapidly dividing skin cells that soon fill with the protein keratin. Hope this answers the question.