What joints are in the hand?
The hand is made up of a variety of different muscles, bones, and ligaments that give it the high level of dexterity that allows us to perform a variety of tasks. The human hand has three main bone types:
- Phalanges are the 14 bones located in the fingers. There are two joints and three bones for each finger, while the thumb only has one joint and two bones.
- Metacarpal bones are the five bones found in the middle of the hand.
- Carpal bones are the two rows of small bones that make up the wrist and are connected to bones in the arm (radius and ulna).
The ligaments in the hand hold the bones together, while the muscles are connected to the bones via tendons. The muscle contract and expand when the hand is activated. Each finger in the hand is surrounded by a tubular sheath that works as a form of elastic pulley to help transmit forces from the muscles.