Articulationes digitorum manus, commonly known as the joints of the fingers, refers to the complex structures connecting the bones of the human hand, specifically the fingers or digits. This anatomical term encompasses the joints found between the individual bones of the fingers, as well as the connections between the bones of the fingers and the hand.
The articulationes digitorum manus are hinge-type synovial joints, allowing flexion and extension movements of the fingers. These joints play a crucial role in hand dexterity and fine motor skills, enabling a wide range of functions such as grasping, manipulation, and precision movements.
Each finger consists of three bones called phalanges, except for the thumb which has only two. The articulationes digitorum manus include two types of joints: interphalangeal joints, found between the phalanges of each finger, and metacarpophalangeal joints, connecting the finger bones to the corresponding metacarpal bones of the hand.
These joints are supported by ligaments, tendons, and muscles, which provide stability, control, and movement. The synovial fluid within the joints lubricates and nourishes the articular surfaces, allowing smooth gliding movements.
The articulationes digitorum manus are vital for functional hand movement, tactile perception, and object manipulation. Maintaining the health and mobility of these joints is essential for activities of daily living and various professional or recreational tasks that rely on the fine coordination and precise movement of the fingers and hands.
