What is the hyponychium?

The hyponychium is specifically defined as the area where the nail meets the skin at the fingertip. It acts as a protective barrier for the nail bed, helping to prevent infections and injuries. This area is located beneath the free edge of the nail and plays a role in the overall health and integrity of the nail structure.

Understanding the anatomy of the nail can help in identifying various terms associated with it. For instance, the white crescent shape of the nail is known as the lunula, while the main body of the nail is referred to as the nail plate. The root of the nail, which lies beneath the skin, is known as the nail matrix, and it is where nail growth occurs. Each of these terms highlights different components of nail anatomy, assisting with better understanding in both clinical and coding contexts.