Human hands are complex structures made up of bones, muscles, tendons, and skin. Each hand typically has 27 bones, including the carpals, metacarpals, and phalanges. The fingers are highly flexible and allow for a wide range of movements, enabling tasks such as grasping, holding, and manipulating objects. The skin on human hands is sensitive and contains many nerve endings, which help detect touch, temperature, and pain. This sensitivity is crucial for activities like playing musical instruments or performing surgery. Overall, hands play a vital role in daily life, contributing to communication, creativity, and functionality.