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Pronator teres pronates the forearm, turning the hand posteriorly. If the elbow is flexed to a right angle, then pronator teres will turn the hand so that the palm faces inferiorly. It is assisted in this action by pronator quadratus. It also weakly flexes the elbow, or assists in flexion at the elbow when there is strong resistance.
pronator teres: intrinsic: median superficial (or intermediate) flexor digitorum superficialis: extrinsic: median deep: flexor digitorum profundus: extrinsic: ulnar + median (as anterior interosseous nerve) deep: flexor pollicis longus: extrinsic: median (as anterior interosseous nerve) deep: pronator quadratus: intrinsic: median (as anterior ...
lateral surface of olecranon, superior part of posterior ulna: deep artery of arm, interosseous recurrent artery: radial nerve (C7, C8, and T1) partly blended with triceps, extends forearm, stabilises elbow, abducts ulna during pronation: 2 1 pronator teres: Upper limb, Forearm, Anterior compartment, Superficial, Right/left
The flexor and pronator muscles of the forearm include the pronator teres, flexor carpi radialis, palmaris longus, and flexor digitorum superficialis, all of which originate on the medial epicondyle and are innervated by the median nerve. [1] The flexor carpi ulnaris muscle also inserts on the medial epicondyle and is innervated by the ulnar ...
The extensor carpi radialis brevis and longus are both weak flexors at the elbow joint. Brevis moves the arm from ulnar abduction to its mid-position and flexes dorsally. Longus is a weak pronator in the flexed arm and a supinator in the outstretched arm.
The shoulder girdle [5] or pectoral girdle, [6] composed of the clavicle and the scapula, connects the upper limb to the axial skeleton through the sternoclavicular joint (the only joint in the upper limb that directly articulates with the trunk), a ball and socket joint supported by the subclavius muscle which acts as a dynamic ligament. While ...
Movements of the shoulder joint. [1] Movement Muscles Origin Insertion Flexion (150°–170°) Anterior fibers of deltoid: Clavicle: Middle of lateral surface of shaft of humerus: Clavicular part of pectoralis major: Clavicle Lateral lip of bicipital groove of humerus Long head of biceps brachii: Supraglenoid tubercle of scapula
of arm/humerus at shoulder. Anterior part of the deltoid muscle [1] Subscapularis [1] Teres major [1] Latissimus dorsi [1] Pectoralis major [1] of thigh/femur at hip [2] Tensor fasciae latae; Gluteus generalis; Anterior fibers of Gluteus meralis; Adductor longus and Adductor brevis; of leg at knee [3] Popliteus; Semimembranosus; Semitendinosus ...