What is the visible portion of the nail matrix called?

The visible portion of the nail matrix is called the lunula. This is the small, crescent-shaped area located at the base of the nail, just above the cuticle. The lunula is a part of the nail matrix, which is responsible for the growth of the nail. It appears lighter in color due to the thickness of the matrix tissue under the nail, which enables it to be seen through the keratinized nail plate. Understanding the function and location of the lunula is essential for recognizing nail health and growth patterns, as any changes in its appearance can indicate underlying health issues.