Body Parts > Arms

The human arm is made up of several segments that together make it one of the most useful and complex tools of the human body. These parts are:

• Upper arm: Extending from the shoulder to the elbow, the upper arm provides pulling and lifting strength.
• Elbow: This hinged joint allows the arm to open up to 180 degrees at full extension.
• Forearm: The forearm is the area between the wrist and the elbow. The muscles in the forearm rotate, flex, and extend the wrist.
• Wrist: Located in the upper hand, eight carpal bones — along with multiple muscles and tendons — form this intricate area.
• Hand: With five fingers, the hand allows humans to do much more complicated tasks than any other animal.