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MABS Anatomy - Arm, Chest, Shoulders > Chest, Arm, Shoulder > Flashcards

Chest, Arm, Shoulder Flashcards

1
Q

supraspinatus origin

A

supraspinatus fossa of scapula

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2
Q

supraspinatus distal

A

superior facet of greater tubercle of humerus

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3
Q

supraspinatus innervation

A

suprascapular n

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4
Q

supraspinatus artery

A

suprascapular

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5
Q

supraspinatus action

A

abducts arm an stabilizes humerus

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6
Q

infraspinatus origin

A

infraspinous fossa

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7
Q

infraspinatus distal

A

greater tuberosity of humerus

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8
Q

infraspinatus innervation

A
  • suprascapular n
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9
Q

infraspinatus artery

A

suprascapular & scapular circumflex

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10
Q

infraspinatus action

A

externally rotates arm

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11
Q

teres minor origin?

A

lateral border and adjacent posterior surface of scapula

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12
Q

teres minor distal?

A

greater tubercle of numerus and posterior joint capsule

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13
Q

teres minor innervation?

A

axillary n

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14
Q

teres minor artery?

A

posterior humeral circumflex & scapular circumflex

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15
Q

teres minor action?

A

modulate deltoid action to or event humeral head subluxation during arm abduction; rotate s humerus laterally

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16
Q

subscapularis origin?

A

medial subscapular fossa and inferolateral border of scapula

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17
Q

subscapularis distal?

A

lesser tuberosity and anterior capsule

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18
Q

subscapularis innervation?

A

subscapular n

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19
Q

subscapularis artery?

A

subscapular

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20
Q

subscapularis action?

A

stabilizes joint from anterior dislocation and internally rotates and adducts humerus

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21
Q

pectoralis major origin?

A

clavicular head sternocostal head

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22
Q

pectoralis major distal?

A

lateral bicipital groove

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23
Q

pectoralis major innervation ?

A

lateral and medial pectoral

24
Q

pectoralis major artery?

A

thoracoacromial trunk

25
Q

pectoralis major action?

A

clavicular: flexes the humerus
sternocostal: adducts humerus

adducts and medially rotates humerus, draws scapula anteriorly and inferiorly

26
Q

pectoralis minor origin?

A

ribs 3-5 at costochondral junction

27
Q

pectoralis minor distal?

A

medial border and superior surface of coracoid process

28
Q

pectoralis minor innervation?

A

medial and lateral pectoral

29
Q

pectoralis minor artery?

A

thoracoacromial trunk

30
Q

pectoralis minor action?

A

stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall, raises ribs during inspiration

31
Q

subclavius origin?

A

ist rib and sternocostal cartilage

32
Q

subclavius distal?

A

subclavian groove

33
Q

subclavius innervation?

A

subclavian

34
Q

subclavius artery?

A

thoracoacromial trunk

35
Q

subclavius action?

A

depression of clavicle; elevation of rib 1

36
Q

biceps brachii origin?

A

short head – coracoid process

long head – supraglenoid tubercle

37
Q

biceps brachii distal?

A

radial tuberosity + fascia of forearm

38
Q

biceps brachii innervation?

A

musculocutaneous

39
Q

biceps brachii artery?

A

brachial

40
Q

biceps brachii action?

A

primary function flexion of forearm; supination

41
Q

brachialis origin?

A

anterior diaphysis of humerus

42
Q

brachialis distal?

A

coronoid process

43
Q

brachialis innervation?

A

musculocutaneous n

44
Q

brachialis artery?

A

brachial & recurrent radial

45
Q

brachialis action?

A

flexion of forearm

46
Q

coracobrachialis origin?

A

coracoid process

47
Q

coracobrachialis distal?

A

medial surface of humerus

48
Q

coracobrachialis innervation?

A

musculocutaneous n

49
Q

coracobrachialis artery?

A

brachial

50
Q

coracobrachialis action?

A

flexes and adducts forearm

51
Q

triceps brachii origin?

A
  • long head – infraglenoid tubercle
  • lateral head – posterior humerus superior to radial groove
  • medial head - posterior humerus inferior to radial groove
52
Q

triceps brachii distal?

A

olecranon and fascia of forearm

53
Q

triceps brachii innervation?

A

medial and lateral heads radial n; long head -axillary

54
Q

triceps brachii artery?

A

All three heads – profundus brachi & humeral circumflex

55
Q

triceps brachii action?

A

extension of the forearm

MABS Anatomy - Arm, Chest, Shoulders (1 decks)

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