supinator


Also found in: Dictionary, Thesaurus, Wikipedia.

su·pi·na·tor (mus·cle)

[TA]
1. muscle of deep layer of proximal part of posterior compartment of forearm; origin, lateral epicondyle of humerus radial collateral and anular ligaments, and supinator ridge of ulna; insertion, anterior and lateral surface of radius; action, supinates the forearm; nerve supply, radial (posterior interosseous).
2. a muscle that supinates, that is, twists the forearm about a longitudinal axis from the pronated or neutral position toward one in which the palms face anteriorly (in the anatomic position).

supinator

(so͞o′pə-nā′tər)
n.
A muscle, especially in the forearm, that effects or assists supination.

supinator

(sū″pĭn-ā′tor) [L.]
A muscle producing the motion of supination of the forearm.

supinator

One of the forearm muscles whose action is to rotate the hand into the palm-up position.
References in periodicals archive ?
The superficial interval between the extensor carpi radialis brevis and the extensor digitorum communis was incised and the supinator muscle belly was exposed (Figs.
Damage to the PI nerve has been usually reported in the dorsal approach, but its occurrence after volar approach indicates that, careful attention must be paid during supinator muscle dissection.
Muscles include deltoid posterior (DP), middle (DM), and anterial (DA), pectorelis major clavicle portion (PC), biceps brachii (BB) including biceps long (BBlh) and biceps short (BBsh) , triceps brachii (TB) including triceps lateral (TBlt), triceps long (TBlh) and triceps mid (TBmd), brachialis (BS), brachioradialis (BR), pronator teres (PT), supinator (SP) and pronator quadratus (PQ).
Two other important movements are pronation (palms-down), provided by the pronator teres, and supination (palms-up), provided by the small, deep supinator on the lateral side of the elbow.
If, for example, you place a pronator in a humid running climate in a highly-cushioned shoe built for a supinator, the shoe may only last 50 miles.
Tenders are invited for Supinator And Pronator With Shoulder Exerciser As Per Specification 1 Construction Percent U2013 Precision Machined Metal Drum Is Fitted With Calibrated Sensitive Resistance Mechanism.
It functions as the primary supinator of the forearm and the secondary flexor of the forearm along with the brachialis.
This exercise was designed to strengthen pronator quadratus, pronator teres and supinator.
The posterior interosseus nerve is a branch of the radial nerve just distal to the elbow joint and supplies the supinator muscle and extensors of the wrist and fingers.
Se logra trazando una incision que, parte del epicondilo lateral del humero y sigue el trayecto de la interlinea de separacion del MERCC y musculo extensor de los dedos (MED) (tambien de 8 cm), cuya separacion permite encontrar al musculo supinator, y de esa manera, descubrir la AF.