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Upper Limb > Posterior Forearm > Flashcards

Posterior Forearm Flashcards

1
Q

What muscles make up the posterior forearm?

A 
Brachoradialis
Extensor carpi radialis
Extensor carpi ulnaris
Anconeus
Extensor digitorum profundus
Extensor digiti minimi
Supinator
Extensor pollucis longus
Extensor pollucis brevis
Extensor indicus proprius 
Abductor pollucis longus
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2
Q

Which muscles make up the superficial part of the posterior forearm?

A 
Brachoradialis
Extensor carpi radialis
Extensor carpi ulnaris
Anconeus
Extensor digitorum profundus
Extensor digiti minimi
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3
Q

Which muscles make up the deep part of the posterior forearm?

A 
Supinator
Extensor pollucis longus
Extensor pollucis brevis
Extensor indicus proprius 
Abductor pollucis longus
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4
Q

Which nerve innervates the muscles of the posterior forearm?

A

Radial nerve

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5
Q

What is the origin of brachoradialis?

A

Lateral supracondylar ridge

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6
Q

What is the insertion of brachoradialis?

A

Distal radialis

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7
Q

What is the action of brachoradialis?

A

Flex elbow

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8
Q

What is the innervation of brachoradialis?

A

Radial nerve

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9
Q

What is the origin of extensor carpi radialis?

A

Longus - supracondylar ridge

Brevis - lateral epicondyle

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10
Q

What is the insertion of extensor carpi radialis?

A

Tendon -> metacarpal 1+2

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11
Q

What is the action of extensor carpi radialis?

A

Extend wrist

Abduct wrist

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12
Q

What is the innervation of extensor carpi radialis?

A

Radial nerve

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13
Q

What is the origin of extensor carpi ulnaris?

A

Lateral epicondyle

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14
Q

What is the insertion of extensor carpi ulnaris?

A

Metacarpal 5

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15
Q

What is the action of extensor carpi ulnaris?

A

Extend wrist

Adduct wrist

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16
Q

What is the innervation of extensor carpi ulnaris?

A

Radial nerve

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17
Q

What is the origin of anconeus?

A

Lateral epicondyle

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18
Q

What is the insertion of anconeus?

A

Posterior + lateral olecranon

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19
Q

What is the action of anconeus?

A

Extend elbow

Abduct ulna in pronation

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20
Q

What is the innervation of anconeus?

A

Radial nerve

21
Q

What is the origin of extensor digitorum profundus?

A

Lateral epicondyle

22
Q

What is the insertion of extensor digitorum profundus?

A

Tendons -> extensor hood

23
Q

What is the action of extensor digitorum profundus?

A

Extend MCPJ

Extend PIPJ

24
Q

What is the innervation of extensor digitorum profundus?

A

Radial nerve

25
Q

What is the origin of extensor digiti minimi?

A

Lateral epidcondyle

26
Q

What is the insertion of extensor digiti minimi?

A

With EDP tendon onto extensor hood of little finger

27
Q

What is the action of extensor digiti minimi?

A

Extend little finger

28
Q

What is the innervation of extensor digiti minimi?

A

Radial nerve

29
Q

What is the origin of supinator?

A

Lateral epicondyle

Posterior ulna

30
Q

What is the insertion of supinator?

A

Posterior radius

31
Q

What is the action of supinator?

32
Q

What is the innervation of supinator?

A

Radial nerve

33
Q

What is the origin of extensor pollucis longus?

A

Posterior ulna + IO membrane

34
Q

What is the insertion of extensor pollucis longus?

A

Distal phalanx of thumb

35
Q

What is the action of extensor pollucus longus?

A

Extend CMCJ
Extend MCPJ
Extend IPJ

36
Q

What is the innervation of extensor pollucis longus?

A

Radial nerve

37
Q

What is the origin of extensor pollucis brevis?

A

Posterior radius + IO membrane

38
Q

What is the insertion of extensor pollucis brevis?

A

Proximal phalanx of thumb

39
Q

What is the action of extensor pollucis brevis?

A

Extend CMCJ

Extend MCPJ

40
Q

What is the innervation of extensor pollucis brevis?

A

Radial nerve

41
Q

What is the origin of extensor indicus proprius?

A

Posterior ulna + IO membrane

42
Q

What is the insertion of extensor indicus proprius?

A

Extensor hood of index finger

43
Q

What is the action of extensor indicus proprius?

A

Extend index finger

44
Q

What is the innervation of extensor indicus proprius?

A

Radial nerve

45
Q

What is the origin of abductor pollucis longus?

A

IO membrane

Posterior radius + ulna

46
Q

What is the insertion of abductor pollucis longus?

A

Lateral base of metacarpal 1

47
Q

What is the action of abductor pollucis longus?

A

Abduct thumb

48
Q

What is the innervation of abductor pollucis longus?

A

Radial nerve

Upper Limb (12 decks)

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