Hand 

The hand is composed of many small bones called carpals(around the wrist), metacarpals (in the hand) and phalanges (in the fingers). The two bones of the lower arm -- the radius and the ulna -- meet at the hand to form the wrist with the carpal bones.

The Median and Ulnar nerves are the major nerves of the hand, running the length of the arm to transmit electrical impulses to and from the brain to create movement and sensation.

A hand injury can occur in a moment, but the social, financial, and emotional effects could last a lifetime. Problems with hand function can also develop over time and eventually interfere with daily life. Among these problems are:

• difficulty in movement
• lack of strength
• tiring
• lack of coordination
• pain or numbness
• swelling