Supination of the forearm and hand is accomplished by the ________. Multiple Choice brachioradialis and anconeus biceps brachii and supinator triceps brachii and supinator anconeus and supinator supinator and brachialis
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Step 1: Brachioradialis and anconeus The brachioradialis and anconeus are responsible for supination of the forearm and hand. Show more…
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The biceps brachii muscle inserts at ______; its main action is _____ and _____. A. distal phalanges of fingers; extension of fingers B. olecranon of ulna; extension of forearm C. radial tuberosity; flexion of elbow and supination of forearm D. palmar aponeurosis; tenses skin of palm The orbicularis oris muscle has origins at _____ and _____; its main action is to _____. A. occipital and temporal bones; raise eyebrows B. frontal and maxillary bones; close eyes C. zygomatic and maxillary bone; smile D. maxilla and mandible; close lips
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