Abductor Pollicis Brevis Muscle

Muscles That Control the Human Hand

The human hand is a picture of complexity and balance. The muscles that control the hand allow it to be strong and refined. Muscles that influence hand movement either originate on bones outside or inside the hand. Muscles that originate outside...

Muscles in the Human Hand

The human hand contains more than a dozen muscles on both the front and palm of the hand that enable us to touch our fingers to each other, grasp objects, hold a glass of milk and swing a fist. Some of the most important muscles in the hand allow...

Bones in the Human Arm

The arm supports the hand, which is the main way you manipulate your environment. There are three main bones of the arm: the humerus in the upper arm, and the radius and ulna in the forearm. The shoulder is where the humerus joins the torso; the...

Muscles of the Hands & Wrists

Your hands and wrists consist of a complex system of muscles, ligaments and joints that work together, enabling you to perform a variety of actions with your hands and fingers. Though the muscles in your hands and wrists are some of the smallest...