Anatomy of the Hand

The hand consists of many alternative bones, muscular tissues, and ligaments that enable for a considerable amount of motion and dexterity.

There are three main varieties of bones within the hand itself:

• Phalanges. These 14 bones are discovered within the fingers of every hand and likewise within the toes of every foot. Every finger has three phalanges (the distal, center, and proximal). The thumb solely has two.

• Metacarpal bones. These 5 bones make up the center a part of the hand.

• Carpal bones. These eight bones create the wrist. The 2 rows of carpal bones are linked to two bones of the arm—the ulna bone and the radius bone.

Quite a few muscular tissues, ligaments, tendons, and sheaths will be discovered throughout the hand. The muscular tissues are the buildings that may contract, permitting motion of the bones within the hand. The ligaments are fibrous tissues that assist bind collectively the joints within the hand. The sheaths are tubular buildings that encompass a part of the fingers. The tendons join muscular tissues within the arm or hand to the bone to permit motion and usually go by means of the sheaths.

As well as, there are arteries, veins, and nerves throughout the hand that present blood circulation and sensation to the hand and fingers.