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Flashcards in Dissection 9 Deck (83):
1

What are the compartments in the arm?

anterior and posterior

2

What are the compartments in the forearm?

anterior; posterior and latelral

3

What is the arterial and venous supply to the ant. compt. of the arm?

brachial artery and vain

4

What is the arterial and venous supply to the posterior compt. of the arm

profunda brachii artery and vein

5

What is the nerve to the ant. compt. of the arm?

musculocutaneous

6

What is the nerve supply to the post. compt. of the arm?

radial

7

What is the blood suuply to the ant. compt. of the forearm?

radial and ulnar arteries; venae comitantes

8

What is the blood suppply and drainage to the post. compt. of the forearm?

interosseous artery; venae comitantes

9

what is the nerve supply to the ant. compt. of the forearm?

median (and ulnar)

10

What is the nerve supply to the post. forearm?

radial

11

What is the blood supply to the hand?

deep nad superficial palmar arches

12

What is the main nerve supply to the hand?

ulnar nerve

13

What are the spinal roots of the brachial plexus?

C5-T1

14

What are the 3 trunks of the brachial plexus?

upper; middle and lower

15

What spinal nerve roots form the upper trunk?

C5 and C6

16

what spinal nerve forms the middle trunk?

C7

17

What spinal nerve roots form the lower trunk?

C8 and T1

18

What form the lateral cord of the brachial plexus?

anterior division of the upper and middle trunks

19

What forms the posterior cord of the brachial plexus?

posterior divisions of upper, middle and lower trunk

20

What forms the medial cord of the brachial plexus?

anterior division of the lower trunk

21

What 2 nerves does the posterior cord split into?

axillary and radial nerves

22

What cord does the musculocutaneous nerve branch from?

lateral cord

23

what cord does the ulner nerve branch from?

medial cord

24

whhich cords form the median nerve?

lateral and medial

25

What nerve roots form the ong thoracic nerve?

C5; C6; C7

26

What artery does the subclavian become?

axiallry

27

What artery does the axillary artery become?

brachial

28

what does the brachial artery bifurcate into?

ulnar and radial arteries

29

What archdoes the radial artery form?

deep palmar arch

30

What arch does the ulnar artery form?

superficial palmar arch

31

What are the 2 main veins in the arm?

cephalic and basilic veins

32

What is the vein that joins the basilic and cephalic veins?

median cubital vein

33

What do the venae comitantes accompany?

brachial artery

34

What is the axillla?

pyramidal space inferior to the shoulder joint and just superior to the hollow that pts refer to as the armpit

35

What is the medial wall of the axilla?

superolateral aspect of the chest

36

What forms the anterior wall of the axilla?

pectoralis major muscle

37

Where does the brachial vein become the axiallry vein?

the lower border of teres major

38

What forms the inferior border of the axilla?

teres major

39

Where does the subclavian artery become the axillary aretry?

lateral border of the first rib

40

Where are the roots and trunks of the brachial plexus found?

between the anterior and middle scalene muscles in the root of the neck

41

Where are the divisions of the brachial plexus found?

immediately posterior to the subclavian vessels in the root of the neck (deep to the clavical

42

Where do the cords of the brachial plexus lie?

around the axiallry artery- distal to the first rib

43

What nerve is vulnerable to injury in shoulder dislocation or fractured neck of humerus?

axillary nerve

44

why is the axillary nerve vulnerable to injury in shoulder injury?

wraps around the posterior aspect of the surgical neck of the humerus

45

What forms the apex of the axilla?

cervico-axiallry canal

46

What is the cervic-axillary canal?

a passageway between the neck and axilla that carries the arteries, veins, nerves and lympathics to the arm

47

What bounds the cervico-axillary canal?

1st rib, clavicle and superior edge of the scapula

48

What forms the base of the axilla?

the axillary fossa- made up of concave skin, subcut tissue and axillary fascia extending from the thoracic wall

49

What form the anterior wall of the axilla?

pectorilis major and minor and the pectoral and clavipectorla fascia associated with them

50

What forms the posterior wall of the axilla?

scapula and the subsacuparis on its anetrior surafce and inferiorly by the teres major and lattissimus dorsi

51

What forms the medial wall of the axilla?

thoracic wall and overlying serratus anterior

52

What forms the lateral wall of the axilla?

intertubercular surface of the humerus

53

What are the four anterior axio-appendicular muscles that move the pectoral girdle?

pecoralis major and minor; subclavius and serratus anterior

54

what muscle does the musculcutaneous nerve emerge from?

coracobrachialis

55

What are the 2 heads of the pectoralis major?

clavicular and sternocostal heads

56

What does the clavicular head of the pectoralis major attach to?

anterior surface of medial half of clavicle

57

What does the sternocostal heado f the pectoralis major attach to?

anterior surface of sternum, superior 6 costal cartilages and the aponeurosis of external oblique muscle

58

`What is the distal attachment for the pectoralis major?

lateral lip of intertubercular groove of humerus

59

What nerves supply pectoralis major?

lateral and medial pectoral nerves

60

What is the proximal attachemnt for pectoralis minor?

3-5th ribs near their costal cartilages

61

What is the distal attachment for pectoralis minor?

medial border and superior surface of coracoid process of scapula

62

What is the nerve supply to pectoralis minor?

medial pectoral nerve

63

What is the proximal attachment for subclavius?

junction of 1st rib and its costal cartilage

64

What is the distal attachment for subclavius?

inferior surface of middle third of clavicle

65

What is the nerve supply to subclavius?

subclavian nerve

66

What is the nerve supply to serratus anterior?

long thoracic nerve

67

What is the proximal attachment of serratus anterior?

external surfaces of lateral partsof 1st-8th ribs

68

What is the ditsla attachment for serratus anterior?

anterior surface of medial border of scapula

69

What is the prox. attachment for supraspinous?

supraspinous fossa of scapula

70

What is the prox. attachment for infraspinous?

infraspinous fossa of scapula

71

What is the prox. attachment for teres minor?

middle part of lateral border of scapula

72

what is the distal attachment for teres minor, supraspinous and infraspinous?

greater tubercle of humerus

73

What is the proximal attachment for the teres major?

posterior aspet of inferior aspect of scapula

74

What is the distal attachment for teres major?

medial lip of interbuercular sulcus of humerus

75

What is the proximal attachment for subscapularis?

subscapular fossa

76

What is the distal attachment for subscapularis?

lesser tubercle of humerus

77

What is the nervous supply to supraspinous nad infraspinous?

suprascapular nerve

78

What is the nerve supply to teres minor?

axillary nerve

79

what is the nerve supply to teres major?

lower subscapular nerve

80

what is the nerve supply to subscapularis?

upper and lower subscapular nerves

81

What is the proximal attachment of deltoid?

lateral third of clavicle; acromion and spine of scapular

82

What is the distal attachment for deltoid?

deltoid tuberosity of humerus

83

what is the nerve supply of deltoid?

axillary nerve