What is extensor carpi radialis brevis?

Extensor Carpi Radialis Brevis is the muscle of the back section of the forearm found on the same side as the back of the hand. Its name is a nod to its function as an extensor wrist or radiocarpal joint, which means that it bends the wrist backwards. The second part of this muscle name 檚 檚 also concerns its location because it is located on the on -board side of the arm above the bone of the radius and its form, because it is slightly shorter than its sister muscle, Extensor Carpi Radialis longus. In addition to its act as an extension wrist, extensor Carpi Radialis brevis kidnaps the wrist, or bends the hand to the side towards the on -the -board side. Extensor Carpi Radialis Brevis shares this point of origin with several other muscles in the forearm because they all come from the tendon attached to the later epicondyle known as the tendon of an ordinary extensor. It also comes on the elbow ligament called radial collateral ligament and also on a sheath of fibrous tissue called aponeurosis that surrounds the muscles.

From this point on the inside of the elbow, extensor carpi radialis brevis runs on the radial side of the back forearm, where its fibers converge and form a tendon that intersects the wrist and enters the hand. Specifically, this tendon runs inside the extensor pollicis brevis and abduCTor pollicis longus, small muscles that extend and kidnap their thumb, and enter the wrist along Carpi Radialis Longus. It then passes under the dorsal carpal ligament, a wide flat ligament that translates the base of the hand laterally and holds all the links together in the bundle. Finally, the metacarpal bone, a long bone just below the middle finger, is connected to its back surface towards the side or pallette side.

Contacts Extensor Carpi Radialis Brevis, through its insertion in the hand, and acts to pull the back of the hand towards the forearms and slightly towards the inch side. This muscle is therefore commonly used during the movements such as writing to the countingClear keyboard. If the excessive use becomes tight, it can be stretched by bending the wrist so that the palm side of the hand, especially on the thumb side, is closer to the front forearm.