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MSK Anatomy > Axilla/arm > Flashcards

Axilla/arm Flashcards

1
Q

Axilla anterior wall

A

pec majorpec minor

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2
Q

axilla medial wall

A

ribs, serratus anterior

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3
Q

axilla posterior wall

A

Teres major, latissimus dorsi, subscapularis

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4
Q

Pec major N

A

lateral and medial pectoral nerves

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5
Q

Pec major fxn

A

flexion of arm, adduction and medial rotation

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6
Q

pec minor N

A

lateral and medial pectoral nerves

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7
Q

pec minor fxn

A

protraction of scapula

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8
Q

Serratus anterior N

A

long thoracic N

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9
Q

serratus anterior fxn

A

protraction of scapula
keeps medial border and inferior angle of scapula opposed to thoracic wall
“Raise arms above the head”

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10
Q

Branch of brachial plexus root

A

Long thoracic nerve (C5 6 7)

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11
Q

Musculocutaneous components

A

C5 6 7

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12
Q

Median nerve components

A

C5 to T1union of lateral and medial cords

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13
Q

Ulnar nerve components

A

C7 8 T1

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14
Q

Brachial plexus components

A

ventral rami of C5 to C8, greater part of anterior raus of T1

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15
Q

Axillary nerve components

A

C5 6

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16
Q

Axillary nerve supply

A

deltoid
teres minor
skin overlying the deltoid muscle

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17
Q

Radial nerve components

A

C5 to T1

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18
Q

C5 movement

A

shoulder abduction (deltoid, axillary)

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19
Q

C6 movement

A

wrist extension

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20
Q

C7 movement

A

wrist fleixion

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21
Q

C8 movement

A

finger flexion

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22
Q

T1 movement

A

finger abduction

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23
Q

C5 reflex

A

biceps

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24
Q

C6 reflex

A

brachioradialis

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25
Q

C7 reflex

A

triceps

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26
Q

bursa related to the shoulder joint

A

subscapular bursa
subacromial bursa
subdeltoid bursa

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27
Q

Rotator cuff muscles

A

subscapulari
ssupraspinatus
infraspinatus
teres minor

28
Q

Supraspinatus OI

A

supraspinous fossa to greater tubercle

29
Q

infraspinatus OI

A

infraspinous fossa to greater tuberclw

30
Q

teres minor OI

A

scapula to greater tubercle

31
Q

subscapularis OI

A

subscapular fossa to lesser tubercle

32
Q

teres major OI

A

scapula to humerus

33
Q

supraspinatus N

A

brachial plexus

34
Q

infraspinatus N

A

brachial plexus

35
Q

teres minor N

A

brachial plexus

36
Q

subscapularis N

A

brachial plexus

37
Q

teres major N

A

brachial plexus

38
Q

deltoid OI

A

clavical, acromion, spine of scapla to deltoid tuberosity of humerus

39
Q

deltoid N

A

axillary

40
Q

supraspinatus fxn

A

abduction

41
Q

infraspinatus fxn

A

lateral rotation

42
Q

teres minor fxn

A

lateral rotation

43
Q

subscapularis fxn

A

medial rotation

44
Q

teres major fxn

A

medial rotation

45
Q

deltoid fxn

A

abduction of arm (main abductor)

46
Q

arm flexor N

A

musculocutaneous

47
Q

arm extensor N

A

radial

48
Q

coracobrachialis fxn

A

flexion of arm

49
Q

brachialis fxn

A

flexion of forearm

50
Q

corachobrachialis N

A

musculocutaneous

51
Q

brachialis N

A

musculocutaneous

52
Q

biceps OI

A

long head: supraglenoid tubercle of scapula
short head: coracoid process of scapula
inserts into radial tuberosity

53
Q

biceps N

A

musculocutaneous

54
Q

biceps fxn

A

flexion of arm
flexion of forearm
supination of forearm

55
Q

Quadrangular space bounds

A

teres minor, teres major, long head ot triceps, surgical neck of the humerus

56
Q

quadrangular space contents

A

axillary nerve

posterior circumflex humeral artery

57
Q

Triangular space bounds

A

teres minor
teres major
long head of triceps

58
Q

triangular space contents

A

circumflex scapular vessels

59
Q

triangular interval bounds

A

teres major
long head of triceps
shaftof the humerus

60
Q

triangular interval contents

A

profunda brachiradial nerve

61
Q

Triceps brachi OI

A

long head: infraglenoid tubercle of scapula
Lateral, medial heads: humerus
inserts into olecranon process

62
Q

Triceps N

A

radial

63
Q

Triceps function

A

elbow extension

64
Q

Cubital fossa bounds

A

brachioradialis
pronator teres
imaginary line joining the two epicondyles of the humerus

65
Q

cubital fossa contents

A

superficial - median cubital vein (IV site)
brachial artery
median nerve
radial nerve

MSK Anatomy (4 decks)

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