What is the deep fold of skin at the base of the nail where the nail root is embedded called?

The deep fold of skin at the base of the nail where the nail root is embedded is referred to as the nail mantle. This structure plays a crucial role in nail growth and development, as it encases the nail matrix, which is the tissue responsible for producing the cells that form the nail. The nail mantle serves as a protective layer for the nail matrix and helps in anchoring the nail and supporting its structure.

In contrast, the nail bed is the skin beneath the nail plate, providing support and nourishment but does not directly house the nail root. The nail matrix is the area that produces new nail cells, while the nail wall refers to the side of the nail, which does not play a role in embedding the nail root. Understanding the anatomy of the nail and its components is essential for nail technicians, as it helps in performing services and maintaining nail health.