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  2. Supinator muscle - Wikipedia

    en.wikipedia.org/wiki/Supinator_muscle

    Supinator always acts together with biceps, except when the elbow joint is extended. [7] It is the most active muscle in forearm supination during unresisted supination, while biceps becomes increasingly active with heavy loading. [8] Supination strength decreases by 64% if supinator is disabled by, for example, injury. [9]

  3. Posterior compartment of the forearm - Wikipedia

    en.wikipedia.org/wiki/Posterior_compartment_of...

    The supinator and the anconeus are the two extensor muscles in the posterior compartment of the forearm that do not pass through wrist extensor compartments. [ 3 ] The first compartment locating the most radial is occupied by the extensor pollicis brevis and the abductor pollicis longus to insert to the thumb.

  4. Pronator teres muscle - Wikipedia

    en.wikipedia.org/wiki/Pronator_teres_muscle

    Pronator teres syndrome is one cause of wrist pain. It is a type of neurogenic pain. It is a type of neurogenic pain. Patients with the pronator teres syndrome have numbness in median nerve distribution with repetitive pronation/supination of the forearm, not flexion and extension of the elbow

  5. Biceps - Wikipedia

    en.wikipedia.org/wiki/Biceps

    The biceps is a particularly powerful supinator of the forearm due to the distal attachment of the muscle at the radial tuberosity, on the opposite side of the bone from the supinator muscle. When flexed, the biceps effectively pulls the radius back into its neutral supinated position in concert with the supinator muscle. [14]: 346–347

  6. Posterior interosseous nerve - Wikipedia

    en.wikipedia.org/wiki/Posterior_interosseous_nerve

    The posterior interosseous nerve (or dorsal interosseous nerve/deep radial nerve) is a nerve in the forearm. It is the continuation of the deep branch of the radial nerve, after this has crossed the supinator muscle. It is considerably diminished in size compared to the deep branch of the radial nerve.

  7. Muscles of the hand - Wikipedia

    en.wikipedia.org/wiki/Muscles_of_the_hand

    The extrinsic muscle groups are the long flexors and extensors. They are called extrinsic because the muscle belly is located on the forearm. The intrinsic group are the smaller muscles located within the hand itself. The muscles of the hand are innervated by the radial, median, and ulnar nerves from the brachial plexus. [1]

  8. Anterior compartment of the forearm - Wikipedia

    en.wikipedia.org/wiki/Anterior_compartment_of...

    The muscles are largely involved with flexion and supination. [2] The superficial muscles have their origin on the common flexor tendon. [2] The ulnar nerve and artery are also contained within this compartment. [2] The flexor digitorum superficialis lies in between the other four muscles of the superficial group and the three muscles of the ...

  9. Wristlock - Wikipedia

    en.wikipedia.org/wiki/Wristlock

    Straightening the arm does not alleviate the pressure, since the shoulder joint does not allow further supination of the hand. A properly executed lock of this type does not apply torque to the wrist itself. In practice, the bones of the forearm and, eventually, the shoulder are the focus of the lock.