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MSK Week 1 > Shoulder Joint > Flashcards

Shoulder Joint Flashcards

(70 cards)

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1
Q

name the two tubercles of the glenoid on the scapula

A

supraglenoid

infraglenoid

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2
Q

what attaches to the infraglenoid tubercle

A

long head of tricep

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3
Q

what attaches to the supraglenoid tubercle

A

long head of bicep

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4
Q

name the two articular surfaces of the distal humerus

A

capitulum and trochlea

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5
Q

what articulates with the capitulum

A

head of radium

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6
Q

what articulates with the trochlea

A

ulna

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7
Q

is capitulum medial or lateral?

A

lateral

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8
Q

what is the groove on the posterior surface of the humerus?

A

radial groove

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9
Q

what two things course along the radial groove?

A

radial nerve and deep brachial artery

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10
Q

what is the distal groove on the humerus? what passes through it?

A

ulnar…the ulnar nerve

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11
Q

what is the other name for the ulnar groove?

A

funny bone

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12
Q

a fracture mid way down the humerus leaves what nerve in trouble?

A

radial nerv

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13
Q

a fracture at top of or at surgical neck of humerus leaves what nerve in trouble?

A

axillary nerve

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14
Q

what is in the valves of veins in the arm to help venous return?

A

valves

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15
Q

name the three levels of veins in the arm

A

superficial
deep
perforating

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16
Q

which set of arm veins is paired and named to match the artery it runs with?

A

deep veins

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17
Q

what is the other name of the deep vein pairs?

A

venae communicantes

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18
Q

name the two large superficial veins of the arm

A

cephalic and basilic

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19
Q

which of cephalic or basilic is lateral and which is medial?

A

cephalic is lateral and basilic is medial

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20
Q

what is the name of the vein that communicated between the cephalic and basilic veins?

A

medial cubital vein

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21
Q

name the layer of fascia surrounding the arm

A

brachial fascia

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22
Q

where does the brachial fascia come from?

A

axillary fascia

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23
Q

how does the brachial fascia divide the arm up?

A

they compartmentalize it via medial and lateral intermuscular septa that connect to the humerus

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24
Q

how does the brachial fascia compartmentalizes muscles

A

with similar function and innervation

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25
name the three muscles of the anterior compartment of the arm
biceps coracobrachialis brachialis
26
what nerve innervates the biceps, coracobrachialis and brachialis?
musculocutaneous nerve
27
where does the short head of the bicep originate?
coracoid process of scapule
28
where does the long head of the bicep originate?
supraglenoid tubercle
29
a muscle that crosses two major joints has what tendency?
tear
30
where does bicep insert?
radial tuberosity
31
what two joints does the bicep cross?
shoulder and elbow
32
what are the two actions of bicep?
flexion and supination of the arm
33
what roots from the musculocutaneous nerve innervate the anterior compartment muscles?
C56
34
what happens when you rupture your bicep?
you get a ball in the middle of your arm
35
where does the bicep tendon usually rupture?
supragelnoid tubercle
36
where does the brachialis insert?
ulnar tiberosity
37
what is action of brachialis?
flexor of arm
38
where is brachialis located
just deep to bicep
39
where does coracobrachialis originate and insert?
origin is coracoid | insert on humerus
40
what is action of coracobrachialis?
flexor and adductor of arm
41
the musculocutaneous nerve innervates the anterior muscles of the arm then continues as what nerve in the forearm?
lateral cutaneous nerve
42
the brachial artery accompanies what nerve as it traverses the upper arm?
median nerve
43
the brachial artery divides into two arteries...name them
radial and ulnar arteries
44
name the five branches of the brachial artery
deep brachial artery radial and middle collateral arteries superior and inferior ulnar arteries
45
the deep brachial artery runs with what nerve?
radial nerve
46
the superior ulnar artery runs with what nerve in what location?
ulnar nerve posterior to medial epicondyle of the humerus
47
muscles of the posterior arm compartment are innervated by what nerve/
radial nerve
48
name the three heads of the tricep
long lateral and medial
49
where do all heads of the tricep insert
olecranon process of the ulna
50
what nerve roots of the radial nerve innervate the tricep?
C678
51
where does the long head of tricep originate?
infraglenoid tubercle of the scapula
52
where does the lateral head of tricep originate?
posterior surface of the humerus
53
where does the medial head of tricep originate?
posterior surface of the humerus
54
what does radial nerve give rise to in the forearm?
posterior cutaneous nerves of arm and forearm
55
mid shaft humeral fractures can present with what? why?
wrist drop because it can cause issues with the radial nerve which innervated the extensors of the forearm
56
what are the two lymph drainages of the arm?
superficial and deep
57
superficial lymph drainage collects from where?
skin and subQ tissue
58
deep lymph drainage collects from where?
bones muscle joints
59
deep lymph follows what veins?
deep veins
60
superficial lymph follows what veins?
cephalic and basilic
61
lymph from right arm joins what main lymph duct?
right lymphatic duct
62
lymph from left arm joins what main lymph duct?
thoracic duct
63
what is the glenoid labrum? what is its purpose?
fibrocartilaginous ring that surrounds and deepens the glenoid cavity...gives more stability
64
what does the glenohumeral joint have surrounding it?
fibrous capsule
65
what tendon does the fibrous capsule cover in the glenohumeral joint?
long head of the biceps
66
name the three glenohumeral ligaments that help strengthen the joint
superior middle inferior
67
what direction do the glenohumeral joints help strengthen the joint?
anterior aspect
68
what is the ligament that protects the glenohumeral joint from dislocation?
coracoacromial ligament
69
what is the role of the transverse humeral ligament?
holds the bicep tendon in the bicipital groove
70
where do shoulder dislocations commonly occur?
in the anterior inferior direction moving the head of the humerus under the coracoid

MSK Week 1 (7 decks)

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