BLOCK 1 BACK/ARM FINAL 2 Flashcards Preview

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Flashcards in BLOCK 1 BACK/ARM FINAL 2 Deck (91):
1

Pectoralis major attachments

P: medial 1/2 clavicle, manubrium, sternum, costal cartilages 1-6, external obliques
D: intertubercular sulcus of humerus

2

Pectoralis major actions

protract, inferiorly rotate scapula
adduct, medially rotate humerus

3

Pectoralis major innervation

medial and lateral pectoral nerves (C5, C6)

4

Pectoralis major blood supply

pectoral branch of thoracoacromial artery

5

Pectoralis minor attachments

P: costal cartilage and ribs 3-5
D: coracoid process of scapula

6

Pectoralis minor actions

protract, depress, inferiorly rotate scapula

7

Pectoralis minor innervation

medial pectoral nerve (C8, T1)

8

Pectoralis minor blood supply

pectoral branch of thoracoacromial artery

9

Subclavius attachments

P: 1st rib and costal cartilage
D: middle 1/3 clavicle in subclavian groove

10

Subclavius actions

assists in stabilizing, depressing clavicle

11

Subclavius innervation

nerve to subclavius (C5, C6)

12

Subclavius blood supply

clavicular branch of thoracoacromial artery

13

Serratus anterior attachments

P: lateral part ribs 1-9
D: medial border of scapula

14

Serratus anterior actions

antagonize rhomboids
protract, depress, superiorly rotate scapula

15

Serratus anterior innervation

long thoracic nerve (C5, C6, C7)

16

Serratus anterior blood supply

lateral thoracic artery

17

Coracobrachialis attachments

P: coracoid process of scapula
D: middle 1/3 medial surface of humerus

18

Coracobrachialis actions

adducts, flexes arm

19

Coracobrachialis innervation

musculocutaneous nerve (C5, C6, C7)

20

Coracobrachialis blood supply

brachial artery

21

Biceps brachii attachments

P: long head @ supraglenois tubercle of scapula
short head @ coracoid process of scapula
D: radial tuberosity (bicipital aponeurosis)

22

Biceps brachii actions

supinates forearm, weakly flexes

23

Biceps brachii innervation

musculocutaneous nerve (C5, C6, C7)

24

Biceps brachii blood supply

brachial artery

25

Brachialis attachments

P: distal 1/2 anterior humerus
D: coronoid process and ulnar tuberosity

26

Brachialis actions

flex forearm at elbow

27

Brachialis innervation

musculocutaneous nerve (C5, C6, C7)

28

Brachialis blood supply

brachial artery

29

Triceps brachii attachments

P: long head @ infraglenoid tubercle of humerus
lateral head @ post. humerus sup. to radial groove, medial head @ post. humerus inf. to radial groove
D: proximal olecranon

30

Triceps brachii actions

chief extensor of forearm
antagonize biceps

31

Triceps brachii innervation

radial nerve

32

Anconeus attachments

P: lateral epicondyle of humerus
D: lateral olecranon, post. ulna

33

Anconeus actions

assist triceps in extending elbow, stabilize elbow

34

Anconeus innervation

radial nerve

35

Pronator teres attachments

P: medial epicondyle of humerus, coronoid process
D: middle lateral radius

36

Pronator teres action

pronate forearm, flex at elbow

37

Pronator teres innervation

median nerve

38

Flexor carpi radialis attachments

P: medial epicondyle of humerus
D: base of 2nd metacarpal

39

Flexor carpi radialis actions

weakly flex, abduct hand at wrist

40

Flexor carpi radialis innervation

median nerve

41

Palmaris longus attachments

P: medial epicondyle of humerus
D: palmar aponeurosis

42

Palmaris longus actions

tense palmar aponeurosis
weakly flex hand at wrist

43

Palmaris longus innervation

median nerve

44

Flexor carpi ulnaris attachments

P: medial epicondyle of humerus, olecranon, post. ulna border
D: pisiform, hook of hamate, 5th metacarpal

45

Flexor carpi ulnaris actions

flex, adduct hand at wrist

46

Flexor carpi ulnaris innervation

ulnar nerve

47

Flexor digitorum superficialis attachments

P: medial epicondyle, superior 1/2 anterior radius
D: middle phalanges digits 2-5

48

Flexor digitorum superficialis actions

flex middle and proximal phalanges

49

Flexor digitorum superficialis innervation

median nerve

50

Flexor digitorum profundus attachments

P: interosseous membrane, proximal ant. med. ulna
D: base of digits 2-5

51

Flexor digitorum profundus actions

flex distal phalanges

52

Flexor digitorum profundus innervation

ulnar half: ulnar nerve
radial half: anterior interosseous nerve

53

Flexor pollicis longus attachments

P: interosseous membrane, anterior radius
D: base of distal phalanx of thumb

54

Flexor pollicis longus innervation

anterior interosseous nerve

55

Pronator quadratus attachments

P: distal 1/4 ulna
D: distal 1/4 radius

56

Pronator quadratus actions

pronate forearm, bind ulna and radius

57

Pronator quadratus innervation

anterior interosseous nerve

58

Brachioradialis attachments

P: lateral supracondylar ridge of humerus
D: distal radius proximal to styloid

59

Brachioradialis actions

flex forearm at elbow

60

Brachioradialis blood supply

radial recurrent artery

61

Brachioradialis innervation

superficial branch of radial nerve

62

Extensor carpi radialis longus attachments

P: lateral supracondylar ridge of humerus
D: base of 2nd metacarpal

63

Extensor carpi radialis longus actions

extend and abduct hand at wrist

64

Extensor carpi radialis longus innervation

superficial branch of radial nerve

65

Extensor carpi radialis brevis attachments

P: lateral epicondyle of humerus
D: base of 3rd metacarpal

66

Extensor carpi radialis brevis actions

extend and abduct hand at wrist

67

Extensor carpi radialis brevis innervation

deep branch of radial nerve

68

Extensor digitorum attachments

P: lateral epicondyle of humerus
D: extensor expansions of digits 2-5

69

Extensor digitorum actions

extend digits 2-5 at MCPs and IPs

70

Extensor digitorum innervation

deep branch of radial nerve

71

Extensor digiti minimi attachments

P: lateral epicondyle of humerus
D: extensor expansion of 5th digit

72

Extensor digiti minimi action

extend 5th digit at MCP and IP

73

Extensor digiti minimi innervation

deep branch of radial nerve

74

Extensor carpi ulnaris attachments

P: lateral epicondyle of humerus
D: base of 5th metacarpal

75

Extensor carpi ulnaris actions

extend, adduct hand at wrist

76

Extensor carpi ulnaris innervation

deep branch of radial nerve

77

Supinator attachments

P: lateral epicondyle of humerus
D: lateral posterior/anterior proximal 1/3 radius

78

Supinator actions

supinate forearm

79

Supinator innervation

deep branch of radial nerve

80

Extensor indicis attachments

P: distal 1/3 ulna, post. interosseous membrane
D: extensor expansion of 2nd digit

81

Extensor indicis actions

extend 2nd digit and hand at wrist

82

Extensor indicis innervation

posterior interosseous nerve

83

Abductor pollicis longus attachments

P: post. interosseous membrane, post. ulna/radius
D: base of 1st metacarpal

84

Abductor pollicis longus actions

abduct thumb, extend @ CMC

85

Abductor pollicis longus innervation

posterior interosseous nerve

86

Extensor pollicis longus attachments

P: interosseous membrane, post. ulna
D: base of distal phalanx of thumb

87

Extensor pollicis longus actions

extend distal phalanx, MCP, CMC of thumb

88

Extensor pollicis longus innervation

posterior interosseous nerve

89

Extensor pollicis brevis attachments

P: interosseous membrane, distal 1/3 post. radius
D: base of proximal phalanx

90

Extensor pollicis brevis actions

extend proximal phalanx of @ MCP of thumb, extend CMC

91

Extensor pollicis brevis innervation

posterior interosseous nerve