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anatomy unit 2: OINAS > posterior forearm: superficial layer > Flashcards

posterior forearm: superficial layer Flashcards

1
Q

what is the order of the superficial layer from medial (starting with the thumb) to lateral?

A
  1. extensor carpi radialis longus
  2. extensor carpi radialis brevis
  3. extensor digitorum
  4. extensor digiti minimi
  5. extensor carpi ulnaris
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2
Q

which muscles attach to the lateral epicondyle of humerus (common extensor tendon)?

A

extensor carpi radialis brevis
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris
supinator

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3
Q

pa: extensor carpi radialis longus

A

base of second metacarpal

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4
Q

da: extensor carpi radialis longus

A

2nd metacarpal

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5
Q

da: extensor carpi radialis brevis

A

base of 3rd metacarpal

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6
Q

da: extensor digitorum

A

extensor expansion of digits 2-5

(EXTENSOR IS IN THE NAME)

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7
Q

da: extensor digiti minimi

A

extensor expansion of 5th digit

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8
Q

da: extensor carpi ulnaris

A

base of 5th metacarpal

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9
Q

nerve innervation: extensor carpi radialis

A

radial nerve C6 C7 C8

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10
Q

nerve innervation: extensor carpi radialis bravis

A

radial nerve C6 C7 C8

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11
Q

which muscles are innervated by radial nerve C6, C7, C8?

A

extensor carpi radialis longus

extensor carpi radialis brevis

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12
Q

ma: extensor carpi radialis longus and extensor carpi radialis brevis

A

wrist extension
wrist radial deviation

ECRL active during fist clenching

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13
Q

which muscles do the following actions:

wrist extension
wrist radial deviation
active during fist clenching

A

extensor carpi radialis longus

extensor carpi radialis brevis

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14
Q

nerve innervation: extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris

A

radial nerve C7, C8

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15
Q

ma: extensor digitorum

A

digits 2-5 extension @MCP (1) and IP joints (2)

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16
Q

ma: extensor digiti minimi

A

5th digit extension @ MCP (1) and IP (2) joints

17
Q

ma: extensor carpi ulnaris

A

wrist extension
wrist ulnar deviation
active during fist clenching

18
Q

pa: extensor carpi radialis longus

A

lateral supra-epicondylar ridge of humerus

anatomy unit 2: OINAS (25 decks)

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