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MSK exam 2 > arm and shoulder joint > Flashcards

arm and shoulder joint Flashcards

1
Q

lymph fluid from the extremeties is conveyed by a series of ____ and ___ vessels

A

superficial and deep

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2
Q

Supraglenoid tubercle

A

for attachment of the long head of the biceps

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3
Q

Infraglenoid tubercle

A

for attachment of the long head of the triceps

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4
Q

Capitulum

A

for articulation with the head of the radius

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5
Q

Trochlea

A

articulation with the ulna

(think trochlea is near the trunk)

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6
Q

sheath of deep fascia that encloses the arm like a sleeve, continuous from the deltoid, pectoral, and axillary fascia proximally

A

brachial fascia

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7
Q

fascia

A

the pectoral fascia then becomes the deltoid fascia then becomes the brachial fascia between shoulder and elbow and then its the antebrachial fascia distally into the forearm

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8
Q

strong ___ arise from the brachial fascia and attach to the shaft of the humerus

A

septa

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9
Q

in the brachial fascia, _____ and ____ intermuscular septa divide the arm into an ______ and ______ compartment with muscles that share the same function and innervation

A

medial/lateral

anterior (flexor)/Posterior (extensor)

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10
Q

biceps muscles cross ___ joints

A

two

shoulder and elbow hence it acts on both joints

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11
Q

innervation of biceps brachii

A

C5 (and C6) of the musculocutaneous nerve

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12
Q

origin of biceps brachii

A

long head - supraglenoid tubercle of scapula (tendon courses in the intertubercular sulcus or bicipital groove)

short head - coracoid process of scapula

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13
Q

Rupture of the _____ of the biceps generally occurs due to “wear and tear” or prolonged tendonitis (baseball pitchers, weight lifters) or chronic arthritis (i.e. rheumatoid arthritis) within the joint

A

long head

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14
Q

insertion of brachialis

A

proximal ulna (tuberosity)

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15
Q

insertion of biceps brachii

A

radial tuberosity of the proximal radius as well as the anterachial fascia via the bicipital aponeurosis

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16
Q

innervation of posterior arm compartment

A

radial nerve

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17
Q

only muscle located in posterior compartment of the arm

A

triceps brachii

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18
Q

located deep to the biceps

A

brachialis

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19
Q

origin of brachialis

A

distal half of the humerus

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20
Q

saturday night palsy

A

compression of radial nerve against the humerus can cause a temporary wrist drop

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21
Q

located on the posterior surface for passage of the radial nerve and the deep brachial artery

A

radial groove!

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22
Q

on posterior aspect of medial epicondyle

A

ulnar nerve

(common site for ulnar nerve impingment)

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23
Q

muscles of the anterior arm compartment

A

biceps brachii

coracobrachialis

brachialis

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24
Q

muscles of the anterior arm compartment are innervated by the

A

musculocutaneous nerve

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25
Q

the venous system of the upper limb consists of ________ and ________ veins

A

superficial and deep veins

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26
Q

what innervates the muscles that extends the wrist

A

radial nerve

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27
Q

perforating veins

A

connect the superficial veins to the deep veins in the upper limb

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28
Q

superficial veins are located wtihin the _____ tissues

A

subcutaneous (easily visible)

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29
Q

common site for phelbotomy

A

median cubital vein

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30
Q

what are the superficial veins?

A

cephalic vein and basilic vein

(basilic is medial/basilic near boob)

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31
Q

pulsating ____ help propel venous blood towards the heart

A

arteries

32
Q

vein that descends the anterior lateral aspect of the arm

A

cephalic vein

33
Q

deltopectoral triangle boundaries

A

clavicle, pectoralis major, deltoid

34
Q

where cephalic vein joins the axillary (deep) vein

A

deltopectoral triangle

35
Q

vein that ascends the anterior medial aspect of the arm

A

basilic

36
Q

both superficial veins communicate via the _________ anterior to the elbow

A

median cubital vein

37
Q

deep veins

A

brachial veins

38
Q

there are ___ veins for every artery in the arm

A

2

39
Q

any muscle that crosses two joints

A

has a tendancy to tear

40
Q

prime flexor of arm

A

brachialis

41
Q

prime supinator of arm

A

biceps brachii

42
Q

this nerve pierces the coracobrachialis

A

musculocutaneous nerve

43
Q

action of coracobrachialis

A

adductor and flexor of arm

44
Q

lateral cutaneous nerve of the forearm

A

musculocutaneous nerve

45
Q

musculocutaneous nerve innervates the ______ and proviedes sensation to the ________

A

muscles in the anterior compartment of the arm

lateral forearm

46
Q

describe the subclavian artery and its changes

A

the subclavian artery passes the 1st rib and becomes the acillary artery, the axillary artery traverses the teres major muscle and becomes the brachial artery, the brachial artery divides into radial and ulnar arteries which end up vascularizing the arches in the hand

SABUR

47
Q

branches of the brachial artery

A

deep profunda brachial artery

radial and middle collateral arteries (deep branch)

superior ulnar collateral artery

inferior ulnar collateral artery

48
Q

the brachial artery is accompanied with the ______ throughout its course

A

median nerve

49
Q

provides arterial supply to muscles of the arm and humerus

A

brachial artery

50
Q

it is clinically significant that the _________ can sometimes be ligated just above the elbow to control for heavy post traumatic bleeding

A

brachial artery - bc of extensive collateral branches can cnotinue to perfuse the forearm and hand

51
Q

only muscle located in the posterior compartment of the arm

A

triceps brachii

52
Q

insertion of triceps brachii

A

all heads insert onto the olecranon process

53
Q

radial nerve gives rise to the ______________ of the arm and forearm which supply sesation to the skin along the posterior dorsal aspect of the limb

A

posterior cutaneous nerves

54
Q

the ______ continues into the forearm and innervates the extensors of the wrist/fingers

A

radial nerve

55
Q

mid shaft humeral fractures

A

proximal fragment often displaces laterally due to pull of deltoid muscle

56
Q

_____________ drain lymph fluid from the skin and subcutaneous tissues and converge to follow the _____ and _____ veins

A

superficial lymphatic vessels

cephalic and basiic veins

57
Q

deep lymphatic vessels drain lymph from _______

A

joints, muscles, and bones

58
Q

deep lymphatic vessels accompany the

A

deep veins

59
Q

lymph from the nodes of the arm joins the systemic venous system via the ______ or the _____

A

right lympatic duct

thoracic duct

60
Q
A
61
Q

musculocutaneous nerve

A

arises from the lateral cord of the brachial plexus

62
Q

anconeus

A

short muslce the assists the tricpes and helps extend the elbow

63
Q

glenoid labrum

A

a fibrocartilagenous “ring” that surrounds and deepnds the glenoid cavity, providing greater stability

64
Q

musculotendinous rotator cuff

A

helps stabilize and hold the humeral head with glenoid cavity

65
Q
A
66
Q

holds long head of bicep tendon in the bicipital groove

A

Transverse humeral ligament

67
Q

extrinsic protective ligament that prevents superior dislocation of humeral head

A

Coracoacromial Ligament (arch)-

68
Q

the glenohumeral joint is extremely

A

mobile

69
Q

most frequently dislocated major joint in the body

A

the glenohumeral joint

70
Q

this aspect of the glenohumeral joint is the weakest

A

inferior

71
Q

glenohumeral joint dislocations are common in the ________ direction, often tearing the _____ and ________

A

anterior-inferior

labrum

anterior joint capsule/subscapularis

72
Q

anterior dislocations of the shoulder

A

subcoracoid dislocation (humeral head often ends up beneath the coracoid process

73
Q

cutaneous nerves from the medial cord of the plexus

A

medial cutaneous nerve of the arm

medial cutaneous nerve of the forearm

74
Q

cutaneous neves of the upper limb - radial nerve

A

posterior cutaneous nerve of the arm

posterior utaneous nerve of the forearm

superficial branch of the radial nerve

75
Q

shoulder dislocations can tear/damage the ______ which results in a high incidence of recurrence

A

glenoid labum

76
Q

the ______________ is susceptible to tenonitis and subequent tears due to its course through the bicipitalgroove and intra articular position within the shoulder joint

A

long head of the bicep

MSK exam 2 (12 decks)

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