Final answer:
The nail bed serves as the point of contact for the nail tip and supports the formation of the nail body. It is located at the tips of the fingers and toes and is distinct from other structures such as the cuticle, fold, lunula, and matrix.
Step-by-step explanation:
The point of contact for the nail tip is the nail bed. The nail bed is a specialized structure of the epidermis located at the tips of our fingers and toes. It supports the formation of the nail body, a keratinous plate that protects our extremities and assists in handling small objects. The nail matrix is found at the proximal end of the nail and contains stem cells that divide to produce keratinocytes, contributing to the growth of the nail. Other structures such as the nail cuticle (eponychium), nail fold, lunula, and hyponychium are associated with the nail but do not serve as the contact point for the nail tip.