Understanding the Structure and Function of Carpal Bones: Key Components of Wrist Joint and Fine Motor Activities

carpal bones

bad bone to break, poor blood supply

Carpal bones, also known as wrist bones, are a group of eight small bones that form the wrist joint located between the forearm and hand. They are arranged in two rows, with four bones in each row. The carpal bones are connected to each other by ligaments, and their shapes allow for the necessary flexibility and movement of the wrist.

The proximal row of carpals, located closer to the forearm, consists of the scaphoid bone, the lunate bone, the triquetral bone, and the pisiform bone. The distal row, located closer to the hand, consists of the trapezium bone, the trapezoid bone, the capitate bone, and the hamate bone.

Each of these bones has a unique shape, with ridges, bumps, and grooves that allow them to articulate with one another and the bones in the forearm and hand. The carpal bones are essential for performing fine motor activities, such as writing, typing, and playing an instrument, and are often subject to injury and overuse.

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