Hamate

Hamate is a bone in the human hand. Specifically, it is one of the eight small bones, known as carpal bones, in the wrist. The hamate bone is located on the ulnar side of the wrist and has a unique hook-like structure, known as the hook of hamate, which protrudes towards the palm.

Structure

The hamate bone is wedge-shaped, and its distinguishing feature is the hook-like process that extends from its palmar surface. This hook serves as an attachment point for various ligaments and tendons in the hand. The bone is covered by cartilage on its proximal surface, which is involved in forming the wrist joint.

Function

The hamate bone, along with the other carpal bones, contributes to the flexibility and movement of the wrist. It also provides a surface for the attachment of ligaments and tendons, which connect the bones to the muscles of the hand and forearm.

Clinical significance

Injuries to the hamate bone, particularly fractures of the hook, are relatively common, especially in athletes who participate in sports that involve swinging a bat, club, or racket. These injuries can cause pain, swelling, and difficulty in moving the wrist and hand. Treatment may involve immobilization, physical therapy, or surgery.

See also

• Carpal bones
• Hand
• Wrist
• Fracture

References

Hamate Resources
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