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731 > 731 benchmark 8 > Flashcards

731 benchmark 8 Flashcards

detailed OINAs

1
Q

what is the origin of the pectoralis major muscle?

A

clavicular: sternal end of clavicle
steronocostal: sternum

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2
Q

What is the insertion of the pectoralis major?

A

clavicular and sternocosal: greater tubercle of anterior humerus

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3
Q

What is the peripheral and segmental innervation of the pectoralis major?

A

Clavicular: lateral pectoral 5,6,7
Sternocostal: lateral and medial pectoral 6,7,8,T1

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4
Q

What is the action of the pectoralis major?

A

Flex, medially rotate, and adduction
clavicular: flex, med rot, horizontally adduct
sternocostal: oblique adduction and depresses shoulder

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5
Q

Origin of latissimus dorsi

A

T7 - L5, ilium and sacrum

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6
Q

Insertion of latissimus dorsi

A

Intertubercular groove of anterior humerus

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7
Q

Nerve innervation of latissimus dorsi

A

thorasodorsal 6,7,8

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8
Q

Action of latissimus dorsi

A

extend, med rot, and adduct (respiratory muscle)

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9
Q

Origin of deltoid muscle

A

anterior: acromion and clavicle
middle: acromion
posterior: spine of scapula

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10
Q

Insertion of deltoid muscle

A

deltoid tuberosity

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11
Q

Action of deltoid

A

abduct humerus
anterior: flexion and medially rotate
middle: abduction
posterior: extend, laterally rotate and horizontal abduction

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12
Q

Nerve innervation for deltoid muscle

A

Axillary - C5,6

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13
Q

Origin for Teres Major

A

Inferior angle of scapula

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14
Q

Insertion for Teres Major

A

intertubercle groove of humerus

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15
Q

Action for Teres Major

A

Extend, med rot, adduct
stabilizes head of humerus in glenoid cavity

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16
Q

Nerve innervation for Teres Major

A

Upper and Lower Subscapular 5,6,7

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17
Q

Origin for Supraspinatus

A

supraglenoid fossa of scapula

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18
Q

Insertion for Supraspinatus

A

greater tubercle of proximal humerus

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19
Q

Action for Supraspinatus

A

Abducts
stabilizes head of humerus in glenoid cavity

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20
Q

Nerve innervation for supraspinatus

A

suprascapular 4,5,6

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21
Q

origin for infraspinatus

A

infraspinatus fossa of scapula

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22
Q

insertion for infraspinatus

A

greater tubercle for proximal humerus

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23
Q

nerve innervation for infraspinatus

A

suprascapular 4,5,6

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24
Q

action for infraspinatus

A

laterally rotates
stabilizes head of humerus in glenoid cavity

25
Q

origin for subscapularis

A

subscapularis fossa of scapula

26
Q

insertion for subscapularis

A

lesser tubercle of humerus

27
Q

nerve innervation for subscapularis

A

upper and lower subscapular 5,6,7

28
Q

action for subscapular

A

medially rotates
stabilizes head of humerus in glenoid cavity

29
Q

origin for teres minor

A

dorsal lateral angle of scapula

30
Q

insertion for teres minor

A

inferior portion of greater tubercle of proximal humerus

31
Q

nerve innervation for teres minor

A

axillary 5,6

32
Q

action for teres minor

A

laterally rotate
stabilizes head of humerus in glenoid cavity
Internally rotates scapula

33
Q

origin for pectoralis minor

A

3,4,5 rib

34
Q

insertion for pectoralis minor

A

coracoid process of scapula

35
Q

action for pectoralis minor

A

depression, downward rotation and abduction of scapula

elevation of ribs

36
Q

nerve innervation for pectoralis minor

A

medial pectoral C6,7,8,T1

37
Q

origin for serratus anterior

A

8-9 ribs

38
Q

insertion for serratus anterior

A

anterior
medial scapula

39
Q

action for serratus anterior

A

depression, abduction, upward rotation prevents scapula winging via ext. rotation

40
Q

nerve innervation for serratus anterior

A

long thoracic nerve 5,6,7,8

41
Q

origin for trapezius

A

upper: occipital bone
middle:T1-5
lower:T6-12

42
Q

insertion for trapezius

A

inferior clavicle and acromion
spine of scapula

43
Q

action for trapezius

A

upper:elevation and upward rotation of scapula
middle:adduction of scapula
lower:depression of scapula and upward rotation of scapula

44
Q

nerve innervation for trapezius

A

ventral ramus C2,3,4

45
Q

origin for rhomboids minor

A

C7-T1

46
Q

insertion for rhomboids minor

A

posterior medial border of scapula

47
Q

action of rhomboids minor

A

adduct scapula +externally and downward rotate scapula

48
Q

nerve innervation for rhomboids minor

A

dorsal scapula 4,5

49
Q

origin for leveator scapulae

A

C1-4

50
Q

insertion for levator scapula

A

posterior superior border of scapula

51
Q

origin for subclavius

A

1st rib

52
Q

insertion for subclavius

A

inferior clavicle

53
Q

nerve innervation for subclavius

A

subclavian nerve 5,6

54
Q

action for subclavius

A

keeps scapula down
stabilizes sternoclavicular ligament

55
Q

origins for rhomboids major

A

T2-T5

56
Q

insertion for rhomboids major

A

posterior medial scapula

57
Q

nerve innervation for rhomboids major

A

dorsalscapular 4,5

58
Q
A

731 (4 decks)

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