Fingers are the slender, movable extensions of the human hand, typically numbering five on each hand. They consist of bones called phalanges, which are connected by joints, allowing for a wide range of motion. Each finger has a specific name: the thumb, index finger, middle finger, ring finger, and little finger. Fingers play a crucial role in various activities, such as grasping objects, typing, and playing musical instruments like the piano. They are also essential for tactile sensation, helping individuals feel textures and temperatures through the skin on their fingertips.