What part of the nail extends over the tip of the finger or toe?

• A. Nail bed
• B. Free edge
• C. Nail matrix
• D. Cuticle

Answer: (B)

The correct answer is the free edge, as this part of the nail is the portion that extends beyond the fingertip or toe. It is the visible edge that protrudes and is usually free from attachment to the skin. The free edge serves both a protective and aesthetic function, giving shape to the nail as well as contributing to the overall appearance of the hands and feet.

The nail bed refers to the skin underneath the nail plate, providing support and nourishment to the nail as it grows but does not extend over the fingertip. The nail matrix is located beneath the cuticle and is responsible for producing new cells that contribute to the length of the nail, but it does not extend beyond the fingertip. The cuticle, a layer of dead skin at the base of the nail plate, acts as a protective barrier and does not extend over the tip of the finger or toe. Thus, the free edge is the only part of the nail that fulfills the criterion specified in the question.