Palmar carpometacarpal ligament
The palmar carpometacarpal ligament is a wrist ligament that is part of the volar deep ligaments. The term volar is used to mean the front part of the hand. Ligaments, or joints, are conjoining tissues that keep bones together. Wrist ligaments function collaboratively to enable hands and fingers to move and hold objects. Carpometacarpal joints have five joints with very limited motion; these are supported by dorsal and palmar ligaments. While dorsal ligaments control bending action, palmar ligaments limit extension. The term palmar refers to the palm, or the grasping side of the hand. As synovial joints, the second to fifth joints' freedom of movement is severely restricted. However, the second and third joints are basically static and usually assumed to have no freedom at all. The palmar carpometacarpal ligament is among the soft tissues of the wrist. It connects the distal row of carpals to the proximal ends of the metacarpal bones to assist both the flexion and extension actions.
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In Depth: Palmar carpometacarpal ligament