Nail Bed: Understanding the Anatomy of Nails

What is the function of the lunula?

A. It protects the nail matrix.

B. It produces melanin.

C. It is responsible for nail growth.

Answer:

A. It protects the nail matrix.

The lunula, also known as the "half-moon," is the white, crescent-shaped area located at the base of the nail. Despite common beliefs, the lunula does not directly contribute to nail growth. Instead, it serves as a protective barrier for the nail matrix, which is the area where nail growth begins.

The lunula's whitish color is caused by the reflection of light off the matrix and the underlying tissue. It is essential to take care of the lunula to maintain the overall health and appearance of the nails.