Dorsal metacarpal artery

Dorsal Metacarpal Artery

The dorsal metacarpal arteries are a group of arteries located in the hand. They play a crucial role in supplying blood to the metacarpal bones and the dorsal aspect of the hand.

Anatomy

The dorsal metacarpal arteries are typically three in number and arise from the dorsal carpal arch. This arch is formed by the anastomosis of the radial artery and the ulnar artery.

Each dorsal metacarpal artery runs distally on the dorsal surface of the hand, between the metacarpal bones. They are located in the interosseous spaces and are accompanied by the dorsal interosseous muscles.

Function

The primary function of the dorsal metacarpal arteries is to supply oxygenated blood to the dorsal aspect of the hand, including the skin and the extensor tendons. They also contribute to the blood supply of the metacarpal bones.

Clinical Significance

Injuries to the dorsal metacarpal arteries can lead to compromised blood flow to the hand, which may result in ischemia or necrosis of the tissues. Surgical procedures involving the hand, such as reconstructive surgery, must take care to preserve these arteries to maintain adequate blood supply.

Related Structures

• Dorsal carpal arch
• Radial artery
• Ulnar artery
• Metacarpal bones
• Dorsal interosseous muscles

See Also

• Palmar metacarpal artery
• Hand anatomy
• Blood supply to the hand

References

• Gray's Anatomy
• Netter's Atlas of Human Anatomy

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