Thumb Anatomy Tendons

Abductor pollicis longus. It starts as a muscle in the forearm and then travels as a tendon in the wrist through the carpal tunnel.

Hazards Of Thumb Overuse Academy Of Clinical Massage

Flexor pollicis longus.

Thumb anatomy tendons. Another common thumb injury that is thought to be associated with repetitive gripping motions is trigger finger or trigger thumb. Anatomy of the hand and wrist. Bones muscles tendons nerves.

There are four thumb tendons. This tendon helps you bend the thumb. Each tunnel is lined internally by a synovial sheath and separated from one another by fibrous septa.

The wrist links the hand to the arm. Tendons of the thumb the thumb consists of eight muscles. The extensor tendon compartments of the wrist are six tunnels which transmit the long extensor tendons from the forearm into the hand they are located on the posterior aspect of the wrist.

Irritation of the protective sheath that surrounds the tendon of the affected thumb can cause the finger to get stuck in the bent position as one moves the thumb or fingers. One row connects with the ends of the bones in the forearm radius and ulna. This allows for the power of gripping and pinching.

The carpal bones are arranged in 2 interrelated rows. The flexor pollicis longus tendon bends the thumb. The wrist is a complex mechanical system of 8 small bones known as the carpal bones.

This tendon helps you move the thumb away from the palm to form an open hand. It is then covered by a tunnel or sheath and inserts into the most distal farthest from your body bone in the thumb. It is unique to humans.

Four within the hand and four connecting from the forearm into the bones of the thumb.

Tendon Transfers In Upper Extremity Background Concepts