Phalanges Each finger except the thumb consists of three bones – the proximal, middle, and distal phalanx. The thumb has only two phalanges – the proximal and the distal. These bones play a central role in the intricate movements of the hand, enabling grasping, pinching, and fine motor coordination. Understanding phalanx anatomy is important as these bones are frequently involved in trauma, degenerative conditions, and tendon-related injuries. Learn about the structure, blood supply, joints and muscles of the phalanges of the hand, the small bones that form the fingers. The web page covers the proximal, middle and distal phalanges, with diagrams, videos and quizzes. The phalanges (singular: phalanx) are the bones of the digits of the hands and feet. The second to fifth digits of the hands and feet each contain a proximal, middle and distal phalanx. Whereas the first digits of the hand and feet, the thumb and ...
