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The extensor tendons are held in place by the extensor retinaculum. As the tendons travel over the posterior (back) aspect of the wrist they are enclosed within synovial tendon sheaths . These sheaths reduce the friction to the extensor tendons as they traverse the compartments that are formed by the attachments of the extensor retinaculum to ...
The extensor carpi radialis longus is a wrist extensor that is innervated by the radial nerve, [2] [3] from spinal roots C6 and C7. [4] All other major extensor muscles in the superficial layer of the posterior compartment (the extensor digitorum , extensor carpi radialis brevis , extensor carpi ulnaris , and extensor digiti minimi ) are ...
It is an extensor, and an abductor of the hand at the wrist joint. That is, it serves to manipulate the wrist so that the fingers moves away from the palm. The muscle, like all extensors of the forearm, can be strengthened by exercise that resist its extension; Reverse wrist curls with dumbbells can be performed.
LittleThings/Maya Borenstein 1. Reach one arm in front of you, keeping the hand parallel to the ground. 2. Flex the wrist back, with the palm facing forward.
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When people spend a lot of time on their computers but don’t have their elbows at the recommended 90-degree angle and wrists in the neutral position, it can be a recipe for carpal tunnel syndrome.
As finger flexor/extensors serve a function as wrist flexor/extensors, doing wrist extension exercises (sometimes called "reverse wrist curls") would also stimulate the finger extensor fibers. Doing fist pushups on the backside of the first finger bone would increasingly put pressure on the extensor muscles as weight was shifted from knuckle ...
of hand at wrist [3] Posterior compartment of the forearm. Extensor carpi radialis longus; Extensor carpi radialis brevis; Extensor carpi ulnaris; Extensor digitorum; of phalanges, at all joints Posterior compartment of the forearm. Extensor digitorum; Extensor digiti minimi (little finger only) Extensor indicis (index finger only)