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MQ-8
Posterior Antebrachial Muscles (Forearm) Superficial Extensor Group
Question | Answer |
---|---|
Anconeus | O: lateral epicondyle of the humerus I: olecranon; upper 1/4 of the posterior surface o the ulna IN: radial nerve |
Brachioradialis | upper 2/3's of the lateral supracondylar ridge of the humerus I: lower end of the radius IN: radial nerve |
Extensor Carpi Radialis Longus | O: lower 1/3 of the lateral supracondylar ridge of the humerus I: base of the second metacarpal bone IN: radial nerve |
Extensor Carpi Radialis Brevis | O: common extensor tendon I: base of the third metacarpal bone IN: radial nerve or the posterior interosseus nerve |
Extensor Digitorum | O: common extensor tendon I: intertendinous connections; dorsal extensor aponeurosis (dorsal digital expansion); insert onto proximal, middle, distal phalanges IN: posterior interroseous nerve |
Extensor Digiti Minimi | O: common extensor tendon I: dorsal extensor apneurosis of the 5th digit IN: posterior interosseous nerve |
Extensor Carpi Ulnaris | O: common extensor tendon and posterior border of the upper 2/3's of the ulna I: base of the fifth metacarpal bone IN: posterior interosseous nerve |