The contains mitotic cells. the contains layers of compacted, highly keratinized epithelial cells. the is the part of the nail that can overhang the tip of the finger. the is deep to the eponychium.

The given blanks can be filled with nail matrix, nail body, free edge of the nail, and nail root.

Explanation:

The nail matrix is situated on the dorsal part of the phalanx at the proximal edge of the nail root on the toes and fingers and comprises mitotic cells. It is considered the growth zone of the nail.  

Nail body refers to the part of the nail plate, which comprises the layers of compacted, highly keratinized epithelial cells. It works to protect the tip of the toes and fingers.  

The free edge of the nail refers to the distal edge of the nail plate, situated on the fingers and toes on the nail plate. It helps to protect the tip of the toe and finger and is the part of the nail, which can overhang the tip of the finger.  

The nail root is situated deep into the eponychium on the nail plate on the toes and fingers. It is the proximal part of the nail plate, and comprises cells of the nail matrix, and helps in the growth of the nail.  

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