Anatomy of the hand
The hand consists of bones, muscles, ligaments, tendons, nerves and blood vessels. It consists of 27 bones, eight of which form the carpal bones. These eight bones lie in two rows and are connected to each other by joints.
Some of the carpal bones are also connected to the radius. The carpal is connected to the five elongated metacarpals, which are joined by the five fingers, which are formed by 14 bones (2 for the thumb and 3 for each of the other fingers). The muscles of the hand are very complex and are mainly formed by the muscles of the forearm, which then only sends tendons into the hand.
These tendons are partially palpable from the outside and can be very painful in case of inflammation or injury. The muscles of the ball of the thumb are called thenar and the muscles of the little finger side are called hypothenar. The hand is supplied by three nerves and two important arteries.
The nerves are called median nerve, radial nerve and ulnar nerve. They are particularly important in the development of pain in compression syndromes such as carpal tunnel syndrome. The arteries that supply the hand are the radial and ulnar arteries.
