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anatomy > lab 3&4 muscles > Flashcards

lab 3&4 muscles Flashcards

1
Q

origin of biceps brachii

A

coracoid process and supraglenoid tubercle of scapula

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2
Q

insertion of biceps brachii

A

radial tuberosity of radius

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3
Q

action of biceps brachii

A

elbow flexion (primary when radioulnar joint is supinated); shoulder flexion; radioulnar joint supination

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4
Q

origin of brachialis

A

anterior-medial shaft of humerus

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5
Q

insertion of brachialis

A

coronoid process of ulna

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6
Q

action of brachialis

A

elbow flexion (primary when radioulnar joint is pronated)

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7
Q

origin of brachioradialis

A

lateral epicondyle of humerus

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8
Q

insertion of brachioradialis

A

lateral distal radius

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9
Q

action of brachioradialis

A

elbow flexion (primary when radioulnar joint is in neutral)

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10
Q

origin of triceps brachii

A

infraglenoid tubercle of scapula; posterior humerus

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11
Q

insertion of triceps brachii

A

olecranon process of ulna

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12
Q

action of triceps brachii

A

elbow and shoulder extension

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13
Q

origin of pronator teres

A

medial epicondyle of humerus

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14
Q

insertion of pronator teres

A

proximal 1/3 of radius

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15
Q

action of pronator teres

A

radioulnar joint pronation

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16
Q

origin of supinator

A

lateral epicondyle of humerus

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17
Q

insertion of supinator

A

proximal 1/3 of radius

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18
Q

action of supinator

A

radioulnar joint supination

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19
Q

origin of flexor carpi radialis

A

medial epicondyle of humerus

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20
Q

insertion of flexor carpi radialis

A

anterior surface of metacarpals 2-3

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21
Q

action of flexor carpi radialis

A

wrist flexion and radial deviation

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22
Q

origin of flexor carpi ulnaris

A

medial epicondyle of humerus

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23
Q

insertion of flexor carpi ulnaris

A

pisiform; hamate; metacarpal 5

24
Q

action of flexor carpi ulnaris

A

wrist flexion and ulnar deviation

25
Q

origin of extensor carpi radialis longus

A

lateral epicondyle of humerus

26
Q

insertion of extensor carpi radialis longus

A

posterior surface of metacarpal 2

27
Q

action of extensor carpi radialis longus

A

wrist extension and radial deviation

28
Q

origin of extensor carpi radialis brevis

A

lateral epicondyle of humerus

29
Q

insertion of extensor carpi radialis brevis

A

posterior surface of metacarpal 3

30
Q

action of extensor carpi radialis breves

A

wrist extension and radial deviation

31
Q

origin of extensor carpi ulnaris

A

lateral epicondyle of humerus

32
Q

insertion of extensor carpi ulnaris

A

posterior surface of metacarpal 5

33
Q

action of extensor carpi ulnaris

A

wrist extension and ulnar deviation

34
Q

origin of diaphragm

A

xiphoid process; lower 6 ribs; lumbar vertebrae

35
Q

insertion of diaphragm

A

central tendon

36
Q

action of diaphragm

A

inspiration (flattens on contraction)

37
Q

origin of external intercostals

A

superior rib

38
Q

insertion of external intercostals

A

inferior rib

39
Q

action of external intercostals

A

rib elevation

40
Q

origin of internal intercostals

A

inferior rib

41
Q

insertion of internal intercostals

A

superior rib

42
Q

action of internal intercostals

A

rib depression

43
Q

action of erector spinae

A

trunk extension

44
Q

origin of rectus abdominis

A

pubic bone and pubic symphysis

45
Q

insertion of rectus abdominis

A

xiphoid process; costal cartilage of ribs 5-7

46
Q

action of rectus abdominis

A

trunk flexion; assists in forced expiration

47
Q

origin of internal obliques

A

lumbar fascia; iliac crest; inguinal ligament

48
Q

insertion of internal obliques

A

linea alba; pubic bone; lower 4 ribs

49
Q

action of internal obliques

A

trunk lateral flexion; trunk rotation to the same side; assists in forced expiration

50
Q

origin of external obliques

A

lower 8 ribs

51
Q

insertion of external obliques

A

linea alba

52
Q

action of external obliques

A

trunk lateral flexion; trunk rotation to the opposite side; assists in forced expiration

53
Q

origin of transversus abdominis

A

lumbar fascia; iliac crest; inguinal ligament

54
Q

insertion of transversus abdominis

A

linea alba

55
Q

action of transversus abdominis

A

trunk rotation to the same side; assists in forced expiration

anatomy (7 decks)

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