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Human Anatomy Fall 2017 > Muscles Posterior Forearm > Flashcards

Muscles Posterior Forearm Flashcards

1
Q

Brachioradialis Origin

A

Distal humerus
(Not on common bundle)
(Lateral border of elbow fossa)

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2
Q

Brachioradialis Insertion

A

Doesn’t cross wrist joint. Inserts just below

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3
Q

Brachioradialis Action

A

acts on elbow

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4
Q

Extensor carpi radialis longus Origin

A

Above common extensor bundle on distal shaft of humerus

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5
Q

Extensor carpi radialis longus Insertion

A

Proximal hand

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6
Q

Extensor carpi radialis longus Inneravtion

A

Radial nerve

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7
Q

Extensor carpi radialis longus Action

A

1) Primarily extending hand at wrist

2) Can abduct the hand at wrist

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8
Q

Abductor pollicis longus Action

A

Abduct thumb

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9
Q

Extensor policis brevis AND longus

A

Radial nerve

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10
Q

Extensor policis brevis AND longus

A

Extend thumb

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11
Q

Extensor digitorum Origin

A

Common extensor origin

Later epicondyle of humerus

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12
Q

Extensor digitorum Insertion

A

Big belly that divides into several tendons through digits 2-5

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13
Q

Extensor digitorum Action

A

Extensor digitorum

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14
Q

Extensor digiti minimi Action

A

Extend digit 5 (pinky)

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15
Q

Extensor carpi ulnaris Insertion

A

Proximal hand

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16
Q

Extensor carpi ulnaris innervation

A

radial nerve

17
Q

Extensor carpi ulnaris action

A

1) Extends hand at wrist

2) Can also adduct (because we’re on ulnar side)

18
Q

Flexor carpi ulnaris innervation

A

radial nerve

19
Q

Flexor carpi ulnaris action

A

flex hand at wrist

20
Q

Anconeus Origin

A

lateral epicondyle

21
Q

Anconeus Insertion

A

Olecranon (proximal shaft of humerus)

22
Q

Anconeus innervation

A

Radial nerve

23
Q

Anconeus Action

A

Assists triceps in extension of forearm

24
Q

Extensor pollicis brevis insertion

A

Extends to the thumb

25
Q

Extensor pollicis brevis action

A

Extends thumb

26
Q

Extensor indicis innervation

A

radial nerve

27
Q

Extensor indicis action

A

extends pointer finger

28
Q

Supinator origin

A

proximal ulna

29
Q

Supinator insertion

A

proximal radius

30
Q

Supinator action

A

1) supination

2) assist biceps brachii

Human Anatomy Fall 2017 (19 decks)

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