Your hand is made up of 27 bones. There are 14 small bones in your fingers called the phalanges - three for each finger and two for your thumb. Your wrist is made up of eight bones known as carpals. And your palm contains five bones called the metacarpals. Fractures to the metacarpal bone that leads to your little finger account for about one-third of all hand fractures in adults.
The two bones of your lower arm - your ulna and your radius - meet at the hand to form your wrist.
There are two major nerves in your hand, known as the median and the ulnar nerves. They run the length of your arm to transmit electrical impulses to and from the brain to create movement and sensation in your hand.
Injuries and Disorders
Injuries and disorders of the hand and upper extremity - those that impact the hand, wrist, and arm - re not only painful, they can disrupt - the movement and function that is vital to your daily activities, from eating to dressing - to earning a living.
A broken finger, for example, is no minor injury. The bones in a normal hand line up precisely, enabling you to perform specialized functions such as grasping a pen or manipulating small objects in your palm. When you fracture a finger bone, it can cause your whole hand to be out of alignment.
Hand and upper extremity surgeons are specially trained to c