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21 gru 2022 · 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. Each tunnel is lined internally by a synovial sheath and separated from one another by fibrous septa.
28 lis 2023 · Residing in the posterior compartment of the forearm, the extensor muscles can be further divided into superficial and deep extensors. [Diagram of the forearm extensors] [Extensors of the forearm (deep layer)]
The forearm muscles are divided into two compartments based on location and action: the anterior or flexor compartment and the posterior or extensor compartment. There are a total of 19 muscles in the forearm that help move not only the elbow and wrist joints but also the joints in the hand and fingers.
30 paź 2023 · The extensor carpi ulnaris muscle is the most medial muscle in the superficial posterior compartment of the forearm. It originates from the lateral epicondyle of humerus via the common extensor tendon.
Extensor Tendon Conditions De Quervain's Tenosynovitis Intersection Syndrome
25 sty 2021 · The muscle gives rise to its tendon at the junction of the proximal and middle thirds of the forearm. This flat, wide tendon continues along the ulnar border of the radius, adjacent to the brachioradialis tendon, to pass under the abductor pollicis longus (APL) and extensor pollicis brevis (EPB) tendons.
22 lip 2024 · The forearm extensor tendons pass under the extensor retinaculum at the level of the wrist. The ligament is divided into six extensorcompartments, separated by fibrous septa passing to the bones of the forearm 2. Summary. The compartments in order from radial to ulnar are: 1st compartment: abductor pollicis longus. extensor pollicis brevis.
