What is the function of the flexor tendon?

Flexor tendons run from the forearm to the ends of the fingers across the palm side of the hand. They control the ability to bend fingers down to the palm (for example to make a fist, grip, or pinch objects). When these tendons are cut or injured, it can be impossible to bend the fingers or thumb.

What is the function of flexor tendons and where do they originate?

Anatomical terms of muscle The common flexor tendon is a tendon that attaches to the medial epicondyle of the humerus (lower part of the bone of the upper arm that is near the elbow joint). It serves as the upper attachment point for the superficial muscles of the front of the forearm: Flexor carpi ulnaris.

What is the mechanism of insertion of long flexor tendon in hand?

The single muscle belly gives rise to 1 tendon, and it is innervated by the anterior interosseous branch of the median nerve (C8 and T1). The FPL inserts into the distal phalanx of the thumb, and its action is to flex the interphalangeal and the metacarpophalangeal (MCP) joints of the thumb.

What is flexor tendon injury?

Flexor Tendon Injuries. A deep cut on the palm side of your fingers, hand, wrist, or forearm can damage your flexor tendons, which are the tissues that help control movement in your hand. A flexor tendon injury can make it impossible to bend your fingers or thumb.

What causes flexor tendon injury?

The most common cause of a flexor tendon injury is a deep cut to the palm or the finger(s). When cut, the tendon acts like a rubber band, and the end pulls away from one another. When this happens it becomes impossible to bend your finger(s). If a tendon is partially cut, the finger may still bend a little.

What does flexor mean in anatomy?

flexor muscle, any of the muscles that decrease the angle between bones on two sides of a joint, as in bending the elbow or knee. Several of the muscles of the hands and feet are named for this function. Compare extensor muscle.

What is flexor mechanism?

flexion, maintaining apposition of tendons and bones across joints, and provides fulcrum to elicit movement (flexion and extension)

Where are the flexors of the hand located?

The fingers have two long flexors, located on the underside of the forearm. They insert by tendons to the phalanges of the fingers. The deep flexor attaches to the distal phalanx, and the superficial flexor attaches to the middle phalanx. The flexors allow for the actual bending of the fingers.

Where are the flexors located?

The flexor muscles of the wrist joint arise from the medial epicondyle of the humerus, radius and ulna; and are inserted into the metacarpal bones. As a group, these muscles are called the long flexors (e.g. flexor digitorum superficialis) to distinguish them from shorter flexors found more distally.