Carpal bone
Carpal Bone
The Carpal Bone (pronounced: /ˈkɑːr.pəl ˈboʊn/) is one of the eight small bones that make up the wrist (or carpus) that connects the hand to the forearm.
Etymology
The term "carpal" is derived from the Greek word karpos, which means "wrist". The term "bone" comes from the Old English bān, which has the same meaning.
Structure
The carpal bones are arranged in two rows. The proximal row, closer to the forearm, includes the scaphoid, lunate, triquetrum, and pisiform bones. The distal row, closer to the hand, includes the trapezium, trapezoid, capitate, and hamate bones.
Function
The carpal bones function to facilitate effective positioning of the hand and powerful use of the extensors and flexors of the forearm, as well as provide a conduit for the structures that must pass from the arm into the hand.
Related Terms
- Scaphoid
- Lunate
- Triquetrum
- Pisiform
- Trapezium
- Trapezoid
- Capitate
- Hamate
- Wrist
- Hand
- Forearm
- Extensors
- Flexors
External links
- Medical encyclopedia article on Carpal bone
- Wikipedia's article - Carpal bone
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