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18 Cards in this Set
- Front
- Back
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name the superficial muscles of the posterior forearm
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brachioradialis (a flexor!), extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digit minimi, extensor carpi ulnaris
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all muscles of the posterior forearm innervated by
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radial nerve or deep branch of radial nerve or posterior interosseous nerve
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extensor digitorum attaches to ________
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extensor expansions (extensor hood) of medial 3 fingers
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what extends the fifth finger?
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extensor digiti minimi
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adduction at the wrist is _____ deviation?
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ulnar deviation
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abduction at the wrist is _____ deviation?
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radial deviation
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Name the deep extensors of the posterior forearm
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supinator, extensor indices, abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis
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All deep extensors of the posterior forearm innervated by?
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deep brach of the radial nerve or the posterior interosseus nerve (continuation of same nerve)
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soupinator soupinates with which other muscle?
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biceps brachii
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Which extensor helps you make the “I'm #1” sign?
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extensor indicis
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Which extensor of the posterior forearm is most lateral?
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abductor pollicis longus
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Which muscles form the anatomical snuffbox?
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abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus
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Deep branch of the radial nerve continues in posterior forearm as ______?
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posterior interosseus nerve
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Posterior interosseous nerve courses thru ______ muscle?
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supinator
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What is “wrist drop” injury?
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Radial nerve injury from fracture to humeral shaft due to relationship to spiral groove; extensors paralyzed, flexors take over
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What is the floor of the anatomical snuffbox?
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scaphoid bone
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What is the roof of the anatomical snuffbox?
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superficial radial nerve branches
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What artery runs through the anatomical snuffbox?
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radial artery
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