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KP 211 > Muscles of the Shoulders > Flashcards

Muscles of the Shoulders Flashcards

1
Q

Pec Major Origin

A

Clavicular head: Ant. surface of medial half of calvicle
Sternocostal head:
Ant surface of sternum, superior 6 costal cartilages aponeuro of external oblique muscles

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2
Q

Pec Major Insertion

A

Lateral lip of intertubercular sulcus

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3
Q

Pec Major nerves

A

Lateral and medial pectoral nerves

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4
Q

Pec Major B.S.

A

Thoracoacromial artery

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5
Q

Pec Major action

A

Adduction, medial rotation and flexion of humerus

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6
Q

Pec minor origin

A

3rd to 5th costal cartilage

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7
Q

Pec minor insertion

A

Medial border and superior surface of coracoid process of scapula

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8
Q

Pec minor innervation

A

Medial pectoral nerve

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9
Q

Pec minor artery

A

Thoracromial artery

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10
Q

Pec minor action

A

Stabilization of scapula

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11
Q

Serratus Anterior origin

A

External surface of lateral parts of ribs 1 to 8

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12
Q

Serratus Anterior insertion

A

Ant. surface of medial border of scapula

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13
Q

Serratus Anterior nerve

A

Long thoracic nerve

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14
Q

Serratus Anterior blood

A

Lateral thoracic and thoracodorsal

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15
Q

Serratus Anterior action

A

Protraction and rotation of scapula

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16
Q

Lat Dorsi origin

A

Spinous processes of T7 to T12, thoracolumbar fascia, iliac crest and inferior 3 or 4 ribs

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17
Q

Lat Dorsi Insertion

A

Floor of intertubecular sulcus of humerus

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18
Q

Lat Dorsi nerve

A

Thoracordorsal

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19
Q

Lat Dorsi blood supply

A

Thoracordosal artery and branch from subscapular

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20
Q

Lat Dorsi action

A

Extension, adduction, medial rotation of humerus

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21
Q

Teres major origin

A

Posterior surface of inf. angle of scapula

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22
Q

Teres major insertion

A

Medial lip of interubercular sulcus

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23
Q

Teres major nerve

A

Lower subscap

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24
Q

Teres major blood supply

A

Subscap and circumflex scap

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25
Q

Teres major action

A

Adduction and medial rotation of hum.

26
Q

Subscapularis origin

A

Subscapular fossa

27
Q

Subscapularis insertion

A

Lesser tubercle of hum.

28
Q

Subscapularis nerve/insertion

A

Upper and lower subscapular nerve/artery

29
Q

Subscapularis action

A

Medial rotation and adduction of humerus

30
Q

Trapezius origin

A

Medial third of nuchal line, nuchal ligament, occiptal protuberance, c7 to t12

31
Q

Trapezius insertion

A

Lateral 1/3 of clavicle, acromion and spine of scapula

32
Q

Trapezius nerves

A

Spinal accessory nerve and c3 and c4 spinal nerves

33
Q

Trapezius blood supply

A

Transverse and superficial cervical arteries

34
Q

Trapezius action

A

Elevation, depression and retraction of scapula, rotates glenoid cavity superiorly

35
Q

Levator scapulae origin

A

Posterior tubercules of transverse processes c1-4

36
Q

Levator scapulae insertion

A

Medial border of scapula

37
Q

Levator scapulae nerves

A

Dorsal scapular and cervicle nerves

38
Q

Infraspinatus origin

A

Infraspinour fossa of scap.

39
Q

Infraspinatus insertion

A

Middle facet of greater tub. of hum.

40
Q

Infraspinatus nerve

A

Suprascapular

41
Q

Infraspinatus b.s.

A

circumflex scapular artery, suprascapular

42
Q

Infraspinatus action

A

Lateral rotation of hum.

43
Q

Supraspinatus origin

A

Supraspinous fossa of scapula

44
Q

Supraspinatus insertion

A

superior facet of greater tubercle of hum.

45
Q

Supraspinatus nerve/b.s.

A

Suprascapular

46
Q

Supraspinatus action

A

Abduction of hum.

47
Q

Teres minor origin

A

Middle part of lateral border of scapula

48
Q

Teres minor insertion

A

middle facet

49
Q

Teres minor nerve/b.s.

A

circumflex scapular, suprascapular

50
Q

Teres minor action

A

Lat rotation of hum.

51
Q

Rhomoid major origin

A

t2-t5

52
Q

Rhomoid major/minor insertion

A

Medial border of scap.

53
Q

Rhomoid major/minor b.s./nerve

A

Dorsal scap.

54
Q

Rhomoid major and minor action

A

Retraction, rotation of scapula to depress glenoid cavity, fixation of scapula

55
Q

Rhomoid minor origin

A

Nuchal ligament and c7-t1

56
Q

Deltoid origin

A

Lateral 3rd of clavicle, acromion, and spine of scapula

57
Q

Deltoid insertion

A

Deltoid tuberosity

58
Q

Deltoid nerve

A

Axillary

59
Q

Deltoid artery

A

Thoracromial & anterior and posterior circumflex humeral arteries

60
Q

Deltoid action

A

Flex, abd., ext., lat rotation, medial rotation of humerus

KP 211 (9 decks)

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