Superficial transverse metacarpal ligament

Superficial transverse metacarpal ligament is a fibrous band that spans the palm of the hand, connecting the metacarpal bones. It is part of the anatomy of the human hand and plays a crucial role in hand function and movement.

Anatomy

The superficial transverse metacarpal ligament is located on the palmar surface of the hand, just distal to the metacarpophalangeal joints. It is a narrow, fibrous band that extends across the heads of the second to fifth metacarpal bones. The ligament is superficial to the deep transverse metacarpal ligament and is more flexible, allowing for the independent movement of the fingers.

The superficial transverse metacarpal ligament is located on the palmar surface of the hand.

Function

The primary function of the superficial transverse metacarpal ligament is to maintain the alignment of the metacarpal heads and to limit their separation during the flexion of the fingers. This helps to ensure the stability of the hand and to facilitate coordinated movement.

Clinical significance

Injury or damage to the superficial transverse metacarpal ligament can result in reduced hand function and mobility. Conditions such as Dupuytren's contracture can cause the ligament to shorten and thicken, leading to the characteristic flexion deformity of the condition.

See also

• Hand
• Metacarpal bones
• Ligament
• Dupuytren's contracture