The nail bed is the area beneath the nail plate that contains blood vessels and nerves, providing support, nourishment, and sensation to the nail
The portion of the nail assembly where the nail plate rests and which contains blood vessels and nerves is called the nail bed. This structure is an extension of the epidermis beneath the nail body, and it is integral to the support and formation of the nail.
The nail bed's rich vascularization gives it a pinkish appearance, and its innervation allows for sensation. Surrounding structures include the nail matrix at the proximal end where nail growth occurs and the nail fold which holds the nail body in place. The proximity of these structures ensures the continuous growth and health of the nail.
So, the nail bed not only provides a sturdy base for the nail plate but also nourishes the nail with its blood supply and allows for tactile sensation due to the presence of nerves.