Final answer:
Nails act as protective plates over the fingertips and toes, and also enhance sensation.
Step-by-step explanation:
In the context of human anatomy, the term "nails" typically refers to the structures located at the tips of the fingers and toes, commonly known as fingernails and toenails. Nails are composed of a protein called keratin and serve several functions, including protection of the fingertips and toes and providing structural support.
Nails act as protective plates over the fingertips and toes. Fingernails also help in sensing the environment. The area under your nail has many nerve endings. These nerve endings allow you to receive more information about objects you touch.