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Anatomy > Muscles > Flashcards

Muscles Flashcards

1
Q

Trapezius proximal attachment

A
  • medial 1/3 of superior nuchal line
  • external occpital protuberance
  • ligamentum nuchae
  • spines and supraspinous ligaments from C7 to T12
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2
Q

Trapezius distal attachment

A
  • poster border of lateral 1/3 of clavicle
  • acromion
  • scapular spine
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3
Q

Trapezius innervation

A

spinal accessory nerve

ventral rami C3, C4

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4
Q

Trapezius function

A

upward rotation (lower)

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5
Q

Latissimus Dorsi proximal attachment

A
  • spinous process of T7-T12
  • thoracoumbar fascia
  • posterior part of iliac crest
  • inferior 3-4 ribs
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6
Q

Latissimus Dorsi distal attachment

A

-intertubercal groove

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7
Q

Latissium Dorsi innervation

A

thoracodorsal nerve (C6,C7, C8)

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8
Q

Latissium Dorsi function

A

internal rotation, shoulder extension, some adduction

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9
Q

Levator scapulae proximal attachment

A

-transverse processes of C1-C4

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10
Q

Levator scapulae distal attachment

A

-medial scapular border between superior angle and end of scapular spine

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11
Q

Levator scapulae innervation

A

dorsal scapular (C5) and cervical (C3,C4)

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12
Q

Levator scapulae function

A

downward rotation

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13
Q

Rhomboid minor proximal attachment

A
  • lower ligament nuchae

- spines of C7 and T1

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14
Q

Rhomboid minor distal attachment

A

medial end of spine of scapula

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15
Q

Rhomboid minor innervation

A

dorsal scapular (C4,C5)

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16
Q

Rhomboid major proximal attachment

A

spines of T2-T5 vertebrae

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17
Q

Rhomboid major distal attachment

A

-medial border of scapula from spine to inferior angle

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18
Q

Rhomboid major innervation

A

dorsal scapular (C4,C5)

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19
Q

Rhomboid function

A

adduction or retration, downward rotation

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20
Q

Deltoid proximal attachment

A
  • lateral 1/3 clavicle
  • acromion
  • spine of scapula
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21
Q

Deltoid distal attachment

A

-deltoid tuberosity

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22
Q

Deltoid innervation

A

axillary nerve (C5,C6)

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23
Q

Deltoid function

A

anterior: flexion and some abduction, horizontal abduction, internal rotation
posterior: horizontal abduction, extension, external rotation
middle: major abductor of shoulder joint

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24
Q

Teres Major proximal attachment

A

-inferior scapular angle

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25
Q

Teres Major distal attachment

A

-medial lip of intertubercular groove

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26
Q

Teres Major innvervation

A

lower subscapular nerve (C5, C6)

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27
Q

Teres Major function

A

internal rotation, adduction, extension

28
Q

Supraspinous proximal attachment

A

-suprascapular fossa

29
Q

Supraspinous distal attachment

A

-superior facet of greater tubercle of humerus

30
Q

Supraspinous innervation

A

suprascapular nerve (C4,C5,C6)

31
Q

Supraspinous function:

A

stabilize, pull head of humerus towards glenoid fossa & allows for some slight abduction

32
Q

Infraspinatus proximal attachment

A

inferior scapular fossa

33
Q

Infraspinatus distal attachment

A

medial facet of greater tubercle of humerus

34
Q

Infraspinatus innervation

A

suprascapular nerve (C5,C6)

35
Q

Infraspinatus function:

A

external rotation, assist with abduction (pulling head of the joint up)

36
Q

Teres Minor proximal attachment

A

-upper 2/3 of lateral border of scapula

37
Q

Teres Minor distal attachment

A

-inferior facet of greater tubercle of humerus

38
Q

Teres Minor innervation

A

axillary nerve (C5,C6)

39
Q

Teres Minor function

A

external rotation, adduction

40
Q

Subscapularis proximal attachment

A

-subscapular fossa

41
Q

Subscapularis distal attachment

A

-lesser tubercle of humerus

42
Q

Subscapularis innervation

A

-upper and lower subscapular nerves (C5,C6,C7)

43
Q

Subscapularis function

A

internal rotation, adduction, horizontal adduction

44
Q

Pectoralis Major proximal attachment

A
  • medial half of clavicle
  • sternum
  • upper six costal cartilages
45
Q

Pectoralis Major distal attachment

A

-lateral lip of intertubercular sulcus

46
Q

Pectoralis Major innervation

A

medial and lateral pectoral nerves (C5,C6:clavicular, C6, C7,C8,T1-sternal)

47
Q

Pectoralis Major function

A

downward rotation, protraction

48
Q

Pectoralis Minor proximal attachment

A

-ribs 3-5

49
Q

Pectoralis Minor distal attachment

A

-coracoid process

50
Q

Pectoralis Minor innervation

A

-medial pectoral nerves (C5,C6,C7,C8,T10

51
Q

Pectoralis Minor function

A
  • protraction scapula

- depress scapula

52
Q

Subclavius proximal attachment

A

-rib 1

53
Q

Subclavius distal attachment

A

inferior clavicle

54
Q

subclavius innervation

A

nerve to subclavius (C5,C6)

55
Q

Subclavius function

A

depression of clavicle

56
Q

Serratus anterior proximal attachment

A

-lateral regions of ribs 1-8

57
Q

Serratus anterior distal attachment

A

-anterior surface if medial border of scapula

58
Q

Serratus anterior innervation

A

-long thoracic nerve (C5,C6,C7)

59
Q

Serratus anterior function

A

protraction

60
Q

What are the upward rotators of the scapula?

A
  • serratus anterior

- upper trapezius

61
Q

What are the downward rotators of the scapula?

A
  • pec minor
  • rhomboids
  • levator scapulae
62
Q

What are the elevators of the scapula?

A

-traps

levator scapulae

63
Q

What are the depressors of the scapula?

A
  • pec minor

- Lats

64
Q

What are the protractors of the scapula?

A

Pec minor

serratus anterior

65
Q

What are the retractors of the scapula?

A

middle traps

rhomboids

Anatomy (16 decks)

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