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Definition
Brachioradialis O: Lateral supracondylar ride of humerus I: Styloid process of radius A: Flexion of elbow with forearm in neutral position N: Radial nerve proper (C5-T1) B: Radial artery
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Term
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Definition
Extensor Carpi Radialis Longus O: Lateral supracondylar ride and lateral epicondyle of humerus I: Base of 2nd metacarpal A: Extension, radial deviation of wrist N: Radial nerve proper (C5-T1) B: Radial artery |
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Term
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Definition
Extensor Carpi Radialis Brevis O: Lateral epicondyle of humerus I: Base of third metacarpal A: Extension of wrist N: Deep radial nerve (C5-T1) B: Radial artery |
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Term
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Definition
Extensor Digitorum O: Lateral epicondyle of humerus I: Extensor expansion of 4 fingers A: Extension of proximal phalanges of 4 fingers at MP joint, assists extension of the wrist N: Deep radial nerve (C5-T1) B: Radial artery
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Term
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Definition
Extensor Digiti Minimi O: Lateral epicondyle of the humerus I: Extensor expansion of little finger A: Extension of proximal finger at MP joint, assists wrist extension N: Deep radial nerve B: Radial artery |
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Term
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Definition
Extensor Carpi Ulnaris O: Lateral epicondyle of humerus, posterior proximal ulna
I: Base of the 5th metacarpal A: Extension, ulnar deviation of the wrist N: Deep radial nerve (C5-T1) B: Radial artery |
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Term
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Definition
Supinator O: Lateral epicondyle of humerus, annular and radial collateral ligaments, proximal ulna at supinator crest I: Lateral surface of proximal 1/3 of radius between anterior and posterior oblique lines A: Supination of forearm N: Deep radial nerve (C5-T1) B: Posterior interosseus artery (from ulnar artery) |
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Term
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Definition
Extensor Indicis O: Posterior ulna and interosseus membrane I: Extensor expansion of index finger A: Extension of proximal phalanx of index finger at MP joint, assists wrist extension N: Deep radial nerve (C5-T1) B: Posterior interosseus artery (from ulnar artery)
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Term
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Definition
Abductor Pollicus Longus O: Posterior radius and ulna, interosseus membrane I: Base of 1st metacarpal A: Abduction of 1st metacarpal of thumb at CM joint, assists radial deviation N: Deep radial nerve B: Posterior interosseus artery (from ulnar artery)
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Term
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Definition
Extensor Pollicus Brevis O: Posterior radius, interosseus membrane I: Base of proximal phalanx of thumb A: Extension of proximal phalanx of thumb at MP joint, assists radial deviation N: Deep radial nerve (C5-T1) B: Posterior interosseus artery (from ulnar artery)
Extensor Pollicus Longus O: Posterior ulna and interosseous membrane- middle 1/3 I: Base of distal phalanx of thumb A: Extension of distal phalanx of thumb at IP joint, assists radial deviation N: Deep radial nerve (C5-T1) B: Posterior interosseus artery (from ulnar artery)
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