Phalanges are the bones that make up the fingers and toes in humans and many other animals. Each finger has three phalanges: the proximal, middle, and distal phalanx, while the thumb has two. The toes also consist of three phalanges each, except for the big toe, which has two. These bones play a crucial role in the movement and dexterity of the hands and feet. The phalanges are part of the skeletal system, which provides structure and support to the body. They connect to the metacarpals in the hands and the metatarsals in the feet, allowing for a wide range of motion. Proper function of the phalanges is essential for activities like grasping objects and walking.