biceps brachii (muscle)

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bi·ceps bra·chi·i (mus·cle)

superficial muscle of anterior (flexor) compartment of arm; origin, long head from supraglenoidal tubercle of scapula, short head from coracoid process; insertion, tuberosity of radius; action, flexes elbow and supinates forearm (it is the primary supinator of the forearm); nerve supply, musculocutaneous.
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