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o= posterior humerus
i= olecranon process of ulna
action = forearm extension
innervation = radial nerve

biceps brachi

o= coracoid process of scapula
i= radial tuberosity
a= forearm flexion
musculocutaneous nerve


0=lowerpart of humerus
i= tuberosity and coronoid process of ulna
a=forearm flexion
radial, musculocutaneous nerve


o=ridge of humerus
i=styloid process of radius
a= flexion
radial nerve


0=lateral epicondyle of humerus and ulna
i=upper part of radius
a= supinates forearm
radial nerve

pronator teres

0=medial epicondyle of humerus; coronoid process of ulna
i= lateral part of radius
a=pronates forearm
median nerve

pronator quadratus

o=medial side/distal end of ulna
i= lateral side/distal end of radius
a=pronates forearm
median nerve

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