Palmar metacarpal ligament
The hand of the human body consists of carpal bones and metacarpal bones. The carpal bones are rounded or triangular-shaped bones located at the top of the hand, below the fingers. The metacarpal bones are the longer bones that create the fingers. The Palmar metacarpal ligament serves as the connective tissue, bonding the two types of bones. When two bones meet, the bones need a ligament covering to move and be flexible. The term palmar refers to the palm of the hand, or the bottom side of the hand. The ligament allows the hand to grasp and hold items. The ligament is located on the underside of the hand, in the space between the metacarpal bones and carpal bones. The Palmar metacarpal ligament is slightly concave in nature, which means it dips low in the center. On top of the ligament are flexor tendons, which increase flexibility in the hand. The area also has interosseous muscles, which are thin muscles that control the mobility of the fingers.
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In Depth: Palmar metacarpal ligament