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upper extremities

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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muscle
origin
insertion
innervation
action
Brachioradialis   show styloid of radius   radial nerve   flexes forearm & pronates/supinates the forearm  
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show LONG: Infragleniod tubercle LATERAL: Lateral Posterior surface Humerus MEDIAL: posterior surface humerus   olecranon of ulna   radial nerve   extends forearm at elbow & sholder  
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Anconeus   lateral epicondyle of humerus   show radial nerve   extends forearm at elbow (assist the triceps)  
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pronator teres   show midlateral surface of radius   medial nerve   pronates forearm at radioulnar joint & weakly flexes forearm at elbow  
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pronator quadratus   distal shaft of the ulna   distal shaft of radius   medial nerve   show
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supinator (corkscrew or screwdriver   show lateral & proximal 1/3 of radius   deep radial nerve   supinates forearm at radioulnar joint  
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Flexor carpi radialis   show 2nd 7 3rd metacarpals   medial nerve   flexes and abducts hand (radial deviation)  
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Palmaris longus (missing in 10% of population on left side)   medial epicondyle of humerus   flexor retinaculum and palmar aponeurosis   medial nerve   show
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flexor carpi ulnaris   show pisiform,hamate, & 5th metacarpal   medial nerve   flexes & adducts hand (ulna deviation)  
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flexor digitorum superficialis   mdial epicondyle, coronoid process of ulna & anterior oblique line of radius   middle phalanx of each finger   show flexes the middle & proximal phalanx & wrist  
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flexor pollicis longus   anterior radius & interosseous membrane   base of the distal phalanx of thumb   show flexes thunb at IP joint  
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flexor digitorum profundus   anterior ulna   show median 7 ulnar nerves   flexes middle and distal phalanges of each finger at IP joints & proximal phalanges at MCP joint & hand at wrist  
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extensor carpi radialis longus   lateral supracondylar ridge   2nd metacarpal   show extends &ABducts hand at wrist  
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show lateral epicondyle of humerus   3rd metacarpal   radial nerve   extends &ABducts hand at wrist  
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extensor digitorum   show middle & distal phalanges of each fingere   radial nerve   extends the phalanges at IP joint & at MCP joints & hand at wrist  
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extensor digiti minimi   show tendon of the extensor digitorum on 5th phalanx   deep radial nerve   extends the proximal phalange of little finger at MCP joint & the hand at the wrist  
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extensor carpi ulnaris   show 5th metacarpal   deep radial nerve   extends, adducts hand at wrist  
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ABductor pollicis longus   posterior & middle radius & ulna along w/the interosseous membrane   1st metacarpal   show Abducts,extends thumb at cmc jt & ABducts hand at wrist  
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extensor pollicis brevis   posterior middle of RADIUS & interosseous membrane   PROXIMAL phalanx of thunb   show extends thumb at CMC &MCP ,& hand at wrist  
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show posterior middle of ULNA & interosseous membrane   DISTAL phalanx of thunb   deep radial nerve   extands thumb at IP & CMC joint & ABDUCTS hand at wrist  
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show posterior ulna   tendon of extensor digitorum on index finger   deep radial nerve   extends the distal 7 middle phalanges of index finger at IP joints & proximal phalanx at MCP jt & hand at wrist  
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Created by: lea
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