The abductor pollicis brevis muscle is a thin subcutaneous muscle located laterally in the thenar eminence of the hand, and is one of the intrinsic muscles of the hand.. Summary. The finely controlled movements the thumb makes are a coordinated effort on the part of several muscles, including the abductor pollicis brevis. Abductor Pollicis Brevis. It originates from the flexor retinaculum of the hand , the tubercle of the scaphoid bone, and additionally sometimes from the tubercle of … Posted on 21st Jul 2020 / Published in: Hand/Fingers/Thumb General information. Abductor Pollicis Brevis. This muscle is responsible for the thumb's abduction, and also plays a role in opposition of the thumb. Perform 10-20 repetitions on each hand and repeat for 3-4 sets.Because of its role in opposition of the thumb, the abductor pollicis brevis is a particularly important component of muscular anatomy.Injury to the abductor pollicis brevis can be caused by repetitive motion or a direct trauma. This muscle actually crosses quite close to the surface of the skin, and is part of a group of muscles which make up the swell of muscular tissue around the thumb's base. Treatment options can include sprinting and bracing to allow the wrist to heal, along with surgery to correct impairments. 0. The thumb's movements are also made possible by the joints in the thumb, which are a bit different from those in the finger.Patients who develop problems with this muscle will usually need to see a doctor who specializes in treatment of conditions which involve the hand and wrist. The abductor pollicis longus muscle is one of three muscles in the forearm that facilitate the movements of the thumb. The deep APL is activated in movements of the thumb to prevent undesired movements of the hand and the forearm. The most common causes would be overuse, perhaps caused by repetitive actions such as typing, heavy lifting, and sports; or a direct impact, such as a fall to the ground or punching something.The abductor pollicis brevis originates at the flexor retinaculum of the hand, the tubercle of the scaphoid bone, and less commonly, the tubercle of the trapezium.The abductor pollicis brevis is a small muscle in the hand which serves to aid in abduction of the thumb, as well as providing a lesser degree of assistance in opposing and extending the thumb.Once the elastic band is in place, keep your hands as still as possible while abducting your thumb out and away from the rest of your hand.The abductor pollicis brevis acts to abduct the thumb by way of the metacarpophalangeal joint and the carpometacarpal joint, in addition to providing some assistance in the opposition and extension of the thumb.The muscle inserts via small tendon into the lateral side of the base of the first phalanx of the thumb, as well as the metacarpophalangeal joint.Recurrent branch of the median nerve.The study demonstrated that: “Cooperation between these muscles is necessary to stabilise the trapezium to the carpus in movements of the thumb. The abductor pollicis brevis is a flat, thin muscle located just under the skin. The abductor pollicis brevis muscle is located in the hand between the wrist and the base of the thumb. origin: mainly from the flexor retinaculum. Derek Moore 0 % Topic. The amount of resistance can be adjusted by holding the elastic band at different points along its length or by pulling it further back with your supporting hand. It is a thenar muscle , and therefore contributes to the bulk of the palm's thenar eminence . The abductor pollicis brevis is a hand muscle which controls some of the movement of the thumb.
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