What is the name of the hardened keratin plate that covers the nail bed?

The hardened keratin plate that covers the nail bed is referred to as the nail plate. This structure is primarily composed of keratin, a tough protein that provides strength and durability. The nail plate acts as a protective layer for the underlying structures of the finger or toe, shielding the nail bed and surrounding tissues from injury and infection.

Understanding the function of the nail plate is essential. It not only protects the sensitive tissues underneath but also provides support for the fingertip. The nail plate is also what we see as the visible part of the nail, and its health is an important indicator of overall well-being.

In contrast, other structures like the nail matrix are responsible for producing the cells that will become the nail plate. The nail bed is the skin underneath the nail plate, and the nail fold refers to the skin that surrounds the nail. Recognizing these definitions helps clarify the unique roles each part plays in nail anatomy.