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Muscles O,I&A's > Muscles of Forearm > Flashcards

Muscles of Forearm Flashcards

1
Q

Origin of Abductor Pollicis Longus

A

Middle 1/2 of posterior surface of radius
Interossesous membrane
Mid portion of posterolateral ulna

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2
Q

Insertion of Abductor Pollicis Longus

A

Dorsal side of the base of the 1st metacarpal

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3
Q

Action of Abductor Pollicis Longus

A

Abducts thumb at carpometacarpal joint

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4
Q

Origin of Anconeus

A

Lateral epicondyle of humerus

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5
Q

Insertion of Anconeus

A

Lateral side of olecranon and upper 1/4 of ulna

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6
Q

Action of Anconeus

A

Extends forearm

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7
Q

Origin of Brachialis

A

Anterior surface of lower 1/2 of humerus and associated intermuscular septa

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8
Q

Insertion of Brachialis

A

Coronoid process of ulna

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9
Q

Action of Brachialis

A

Flexes forearm

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10
Q

Origin of Brachioradialis

A

Upper 2/3 of lateral supracondylar ridge of humerus

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11
Q

Insertion of Brachioradialis

A

Lateral side of the base of the styloid process of ulna

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12
Q

Action of Brachioradialis

A

Flexes elbow, assists in pronation and supination

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13
Q

Origin of Extensor Carpi Radialis Brevis

A

Common extensor tendon (lateral epicondyle)

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14
Q

Insertion of Extensor Carpi Radialis Brevis

A

Dorsum of 3rd metacarpal bone

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15
Q

Action of Extensor Carpi Radialis Brevis

A

Extends the wrist, abducts hand

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16
Q

Origin of Extensor Carpi Radialis Longus

A

Lower 1/3 of lateral supracondylar ridge of humerus

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17
Q

Insertion of Extensor Carpi Radialis Longus

A

Dorsum of 2nd metacarpal bone

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18
Q

Action of Extensor Carpi Radialis Longus

A

Extends the wrist, abducts the hand

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19
Q

Origin of Extensor Carpi Ulnaris

A

Common extensor tendon
Middle 1/2 of posterior border of ulna

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20
Q

Insertion of Extensor Carpi Ulnaris

A

Medial side of the base of the 5th metacarpal

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21
Q

Action of Extensor Carpi Ulnaris

A

Adducts the hand, extends the wrist

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22
Q

Origin of Extensor Digiti Minimi

A

Common extensor tendon (lateraly epicondyle of humerus)

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23
Q

Insertion of Extensor Digiti Minimi

A

Joins the extensor digitorum tendon to the 5th digit and inserts into extensor expansion

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24
Q

Action of Extensor Digiti Minimi

A

Extends the metacarpophalangeal (MCP), proximal interphalangeal (PIP) and distal interphalangeal (DIP) of 5th digit

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25
Q

Origin of Extensor Digitorum

A

Common extensor tendon ( lateral epicondyle of humerus)

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26
Q

Insertion of Extensor Digitorum

A

Extensor expansion of digits 2-5

27
Q

Action of Extensor Digitorum

A

Extends MCP, PIP & DIP joints 2-5
Extends wrist

28
Q

Origin of Extensor Indicis

A

Interosseous membrane
Posterolateral surface of distal ulna

29
Q

Insertion of Extensor Indicis

A

Joins the tendon of extensor digitorum to the 2nd digit and inserts into extensor expasion

30
Q

Action of Extensor Indicis

A

Extends index finger at MCP, PIP & DIP joint

31
Q

Origin of Extensor Pollicis Brevis

A

Interosseous membrane
Posterior surface of distal radius

32
Q

Insertion of Extensor Pollicis Brevis

A

Base of proximal phalanx of thumb

33
Q

Action of Extensor Pollicis Brevis

A

Extends thumb at MCP joint

34
Q

Origin of Extensor Pollicis Longus

A

Interosseous membrane
Middle part of posterolateral surface of ulna

35
Q

Insertion of Extensor Pollicis Longus

A

Base of distal phalanx of thumb

36
Q

Action of Extensor Pollicis Longus

A

Extends thumb at IP joint

37
Q

Origin of Flexor Carpi Radialis

A

Common flexor tendon from medial epicondyle of humerus

38
Q

Insertion of Flexor Carpi Radialis

A

Base of 2nd & 3rd metacarpals

39
Q

Origin of Flexor Carpi Ulnaris

A

Common flexor tendon
Medial border of olecranon
Upper 2/3 of posterior border of ulna

40
Q

Action of Flexor Carpi Radialis

A

Flexes wrist and abducts hand

41
Q

Insertion of Flexor Carpi Ulnaris

A

Pisiform
Hook of hamate
Base of 5th metacarpal

42
Q

Action of Flexor Carpi Ulnaris

A

Flexes wrist, Adducts hand

43
Q

Origin of Flexor Digitorum Profundus

A

Posterior border of ulna
Proximal 2/3 medial border of ulna
Interosseous membrane

44
Q

Insertion of Flexor Digitorum Profundus

A

Base of distal phalanx of digits 2-5

45
Q

Action Flexor Digitorum Profundus

A

Flexes MCP, PIP & DIP joints

46
Q

Origin of Flexor Digitorum Superficialis

A

Humeroulnar head : common flexor tendon
Radial head: middle 1/3 of radius

47
Q

Insertion of Flexor Digitorum Superficialis

A

Shafts of middle phalanges of digits 2-5

48
Q

Action of Flexor Digitorum Superficialis

A

Flexes MCP & PIP joints

49
Q

Origin of Flexor Pollicis Longus

A

Anterior surface of radius
Interosseous membrane

50
Q

Insertion of Flexor Pollicis Longus

A

Base of distal phalanx of thumb

51
Q

Action Flexor Pollicis Longus

A

Flexes the MCP and IP joints of thumb

52
Q

Origin of Palmaris Longus

A

Common flexor tendon from the medial epicondyle of the humerus

53
Q

Insertion of Palmaris Longus

A

Palmar aponeurosis

54
Q

Action Palmaris Longus

A

Flexes wrist

55
Q

Origin of Pronator Quadratus

A

Medial side of anterior surface of distal 1/4 of ulna

56
Q

Insertion of Pronator Quadratus

A

Anterior surface oif dital 1/4 of radius

57
Q

Action of Pronator Quadratus

A

Pronates forearm

58
Q

Origin of Pronator Teres

A

Common flexor tendon
Medial side of coronoid process of ulna

59
Q

Insertion of Pronator Teres

A

Midpoint of the lateral side of the shaft of the radius

60
Q

Action of Pronator Teres

A

Pronates forearm

61
Q

Origin of Supinator

A

Lateral epicondyle of the humerus
Supinator crest & fossa of ulna
Radial collateral ligament
Annular ligament

62
Q

Action of Supinator

A

Supinates forearm

62
Q

Insertion of Supinator

A

Lateral side of proximal 1/3 of radius

Muscles O,I&A's (13 decks)

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