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MSK > Dissection 9 > Flashcards

Dissection 9 Flashcards

1
Q

What are the compartments in the arm?

A

anterior and posterior

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2
Q

What are the compartments in the forearm?

A

anterior; posterior and latelral

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3
Q

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

A

brachial artery and vain

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4
Q

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

A

profunda brachii artery and vein

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5
Q

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

A

musculocutaneous

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6
Q

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

A

radial

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7
Q

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

A

radial and ulnar arteries; venae comitantes

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8
Q

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

A

interosseous artery; venae comitantes

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9
Q

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

A

median (and ulnar)

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10
Q

What is the nerve supply to the post. forearm?

A

radial

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11
Q

What is the blood supply to the hand?

A

deep nad superficial palmar arches

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12
Q

What is the main nerve supply to the hand?

A

ulnar nerve

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13
Q

What are the spinal roots of the brachial plexus?

A

C5-T1

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14
Q

What are the 3 trunks of the brachial plexus?

A

upper; middle and lower

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15
Q

What spinal nerve roots form the upper trunk?

A

C5 and C6

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16
Q

what spinal nerve forms the middle trunk?

A

C7

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17
Q

What spinal nerve roots form the lower trunk?

A

C8 and T1

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18
Q

What form the lateral cord of the brachial plexus?

A

anterior division of the upper and middle trunks

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19
Q

What forms the posterior cord of the brachial plexus?

A

posterior divisions of upper, middle and lower trunk

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20
Q

What forms the medial cord of the brachial plexus?

A

anterior division of the lower trunk

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21
Q

What 2 nerves does the posterior cord split into?

A

axillary and radial nerves

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22
Q

What cord does the musculocutaneous nerve branch from?

A

lateral cord

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23
Q

what cord does the ulner nerve branch from?

A

medial cord

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24
Q

whhich cords form the median nerve?

A

lateral and medial

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25
Q

What nerve roots form the ong thoracic nerve?

A

C5; C6; C7

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26
Q

What artery does the subclavian become?

A

axiallry

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27
Q

What artery does the axillary artery become?

A

brachial

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28
Q

what does the brachial artery bifurcate into?

A

ulnar and radial arteries

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29
Q

What archdoes the radial artery form?

A

deep palmar arch

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30
Q

What arch does the ulnar artery form?

A

superficial palmar arch

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31
Q

What are the 2 main veins in the arm?

A

cephalic and basilic veins

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32
Q

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

A

median cubital vein

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33
Q

What do the venae comitantes accompany?

A

brachial artery

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34
Q

What is the axillla?

A

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

35
Q

What is the medial wall of the axilla?

A

superolateral aspect of the chest

36
Q

What forms the anterior wall of the axilla?

A

pectoralis major muscle

37
Q

Where does the brachial vein become the axiallry vein?

A

the lower border of teres major

38
Q

What forms the inferior border of the axilla?

A

teres major

39
Q

Where does the subclavian artery become the axillary aretry?

A

lateral border of the first rib

40
Q

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

A

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

41
Q

Where are the divisions of the brachial plexus found?

A

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

42
Q

Where do the cords of the brachial plexus lie?

A

around the axiallry artery- distal to the first rib

43
Q

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

A

axillary nerve

44
Q

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

A

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

45
Q

What forms the apex of the axilla?

A

cervico-axiallry canal

46
Q

What is the cervic-axillary canal?

A

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

47
Q

What bounds the cervico-axillary canal?

A

1st rib, clavicle and superior edge of the scapula

48
Q

What forms the base of the axilla?

A

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

49
Q

What form the anterior wall of the axilla?

A

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

50
Q

What forms the posterior wall of the axilla?

A

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

51
Q

What forms the medial wall of the axilla?

A

thoracic wall and overlying serratus anterior

52
Q

What forms the lateral wall of the axilla?

A

intertubercular surface of the humerus

53
Q

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

A

pecoralis major and minor; subclavius and serratus anterior

54
Q

what muscle does the musculcutaneous nerve emerge from?

A

coracobrachialis

55
Q

What are the 2 heads of the pectoralis major?

A

clavicular and sternocostal heads

56
Q

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

A

anterior surface of medial half of clavicle

57
Q

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

A

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

58
Q

`What is the distal attachment for the pectoralis major?

A

lateral lip of intertubercular groove of humerus

59
Q

What nerves supply pectoralis major?

A

lateral and medial pectoral nerves

60
Q

What is the proximal attachemnt for pectoralis minor?

A

3-5th ribs near their costal cartilages

61
Q

What is the distal attachment for pectoralis minor?

A

medial border and superior surface of coracoid process of scapula

62
Q

What is the nerve supply to pectoralis minor?

A

medial pectoral nerve

63
Q

What is the proximal attachment for subclavius?

A

junction of 1st rib and its costal cartilage

64
Q

What is the distal attachment for subclavius?

A

inferior surface of middle third of clavicle

65
Q

What is the nerve supply to subclavius?

A

subclavian nerve

66
Q

What is the nerve supply to serratus anterior?

A

long thoracic nerve

67
Q

What is the proximal attachment of serratus anterior?

A

external surfaces of lateral partsof 1st-8th ribs

68
Q

What is the ditsla attachment for serratus anterior?

A

anterior surface of medial border of scapula

69
Q

What is the prox. attachment for supraspinous?

A

supraspinous fossa of scapula

70
Q

What is the prox. attachment for infraspinous?

A

infraspinous fossa of scapula

71
Q

What is the prox. attachment for teres minor?

A

middle part of lateral border of scapula

72
Q

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

A

greater tubercle of humerus

73
Q

What is the proximal attachment for the teres major?

A

posterior aspet of inferior aspect of scapula

74
Q

What is the distal attachment for teres major?

A

medial lip of interbuercular sulcus of humerus

75
Q

What is the proximal attachment for subscapularis?

A

subscapular fossa

76
Q

What is the distal attachment for subscapularis?

A

lesser tubercle of humerus

77
Q

What is the nervous supply to supraspinous nad infraspinous?

A

suprascapular nerve

78
Q

What is the nerve supply to teres minor?

A

axillary nerve

79
Q

what is the nerve supply to teres major?

A

lower subscapular nerve

80
Q

what is the nerve supply to subscapularis?

A

upper and lower subscapular nerves

81
Q

What is the proximal attachment of deltoid?

A

lateral third of clavicle; acromion and spine of scapular

82
Q

What is the distal attachment for deltoid?

A

deltoid tuberosity of humerus

83
Q

what is the nerve supply of deltoid?

A

axillary nerve

MSK (39 decks)

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