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MD 814 > Posterior Forearm And Hand > Flashcards

Posterior Forearm And Hand Flashcards

1
Q

What are the extensor/posterior superficial deep muscles of the forearm

A

Brachioradialis
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Extensor Digitorum
Extensor Carpi Ulnaris
Extensor Digiti Minimi

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2
Q

What are the deep layers of the extensor/posterior compartment of the forearm?

A

Supinator
Abductor Pollicis Longus
Extensor Pollicis Longus
Extensor Pollicis Brevis
Extensor Indicis

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3
Q

Where do most muscles arise from?

A

Lateral epicondyle of the humerus

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4
Q

Function & innervation: brachioradialis

A

Forearm flexion & radial nerve

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5
Q

Function & innervation: extensor carpi radialis longus

A

Extension/abduction of hand & radial nerve

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6
Q

Function & innervation: extensor carpi radialis Brevis

A

Extension/abduction of hand & radial nerve

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7
Q

Function & innervation: extensor carpi radialis Brevis

A

Extension/abduction of hand & radial nerve

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8
Q

Function & innervation: Extensor digitorum

A

Extension of fingers/hand & radial nerve

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9
Q

Function & innervation: Extensor carpi ulnaris

A

Extension/adduction of hand & radial nerve

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10
Q

Function & innervation: Extensor digiti minimi

A

Extension of 5th digit & radial nerve

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11
Q

Function & innervation: supinator

A

Forearm supination & radial nerve

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12
Q

Function & innervation: abductor pollicis longus

A

Abduction/extinction of thumb & radial nerve

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13
Q

Function & innervation: extensor pollicis longus

A

Extension of 1st digit at IP + MCP joint & radial nerve

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14
Q

Function & innervation: extensor pollicis Brevis

A

Extension of 1st digit at MCP joint & radial nerve

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15
Q

Function & innervation: Extensor indicis extension

A

Extension of 2nd digit (index) & radial nerve

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16
Q

What does the brachial artery branch into?

A

Radial artery and ulnar artery

17
Q

What does the ulnar artery branch into?

A

Interousseous artery (has anterior and posterior divisions)

18
Q

What are the nerves of the forearm?

A

Median, ulnar, and radial

19
Q

What does the median nerve innervate?

A

Muscles of anterior compartment of forearm EXCEPT: flexor carpi ulnaris and digits of 4-5 for flexor digitorum profundus

20
Q

What does the ulnar nerve innervate?

A

Flexor carpi ulnaris and digits 4-5 for flexor digitorum profundus

21
Q

What does the radial nerve innervate?

A

Deep branch innervate all muscles of extensor compartment of forearm

Superficial branch innervate skin on posterior of 1st digit

MD 814 (11 decks)

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