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Wrist muscles. Your wrist shares muscles with your forearm. Their groups include: Flexion: Muscles that let you move your wrist down, toward your palm. Extension: Muscles that pull your wrist up, like you would to make a “stop” gesture at someone in front of you. Adduction: Muscles that let you bend your wrist in, toward the center of your ...
Muscles associated with the wrist include those of the forearm and hand that move the wrist and digits. The wrist and hand exhibit a remarkable range of movement, key for grasping and interaction with objects.
The muscles on the front of the forearm (palmer aspect) act to flex the wrist, such as when you push a roundabout: Flexor carpi radialis; Flexor carpi ulnaris; Flexor digitorum superficialis; Flexor pollicis longus; Some of these muscles also help to perform radial and ulnar deviation.
Wrist motion is controlled by the ligaments and the proximal forearm muscles. This article discusses the key anatomical structures of the wrist which enable functional movement, including the bony structures, articulations, ligaments, muscles, nerves and the vascular supply.
Muscles. The main muscles that are important at the wrist have been mentioned above in the discussion about tendons. These muscles generally start further up in the forearm. The tendons of these muscles cross the wrist. They control the actions of the fingers, thumb, and wrist. Nerves. All of the nerves that travel to the hand cross the wrist.
Movements of the Wrist and Hand. Thirty-four muscles act on the hand. Intrinsic muscles of the hand contain the origin and insertions within the carpal and metacarpal bones. Muscles originating in the forearm are the extrinsic muscles of the hand.
Flexor carpi radialis is a fusiform muscle located in the anterior forearm. It belongs to the superficial layer of the anterior forearm compartment, along with the pronator teres, flexor carpi ulnaris, palmaris longus and flexor digitorum superficialis muscles.
The muscles in the forearm and palm (thenar muscles) all work together to keep the wrist and hand moving, stable, and well-aligned. The image below shows the bones of the hand from the back side. The red lines show where the tendons attach the muscles to the bones. Many of the muscles that move the fingers and thumb originate in the forearm.
Muscles acting on the radiocarpal joint. All the movements of the wrist joint are performed by the muscles of the forearm. Flexion is mainly produced by the flexor carpi ulnaris and flexor carpi radialis, with the support from the flexor digitorum superficialis.
The wrist joint (also known as the radiocarpal joint) is an articulation between the radius and the carpal bones of the hand. It is condyloid-type synovial joint which marks the area of transition between the forearm and the hand.