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Adam KCU Anatomy I Exam 2 > Muscles of the Shoulder Complex > Flashcards

Muscles of the Shoulder Complex Flashcards

1
Q

What elevates the scapula?

A

Levator Scapulae Rhomboids

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2
Q

What depresses the scapula?

A

Latisimus Dorsi

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3
Q

What abducts the scapula?

A

Serratus Anterior

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4
Q

What abducts the shoulder?

A

Middle Deltoid

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5
Q

What upwardly rotates the scapula?

A

Serratus Anterior Upper and Lower Trapezius

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6
Q

Downward Rotation of Scapula?

A

Rhomboids Levator Scapulae

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7
Q

What extends the shoulder?

A

Posterior Deltoid Latissimus Dorsi

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8
Q

What flexes the Shoulder?

A

Anterior Deltoid

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9
Q

What adducts the Scapula?

A

Middle Trapezius

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10
Q

What adducts the Shoulder?

A

Clavicular head of pec major Latissimus Dorsi

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11
Q

CN XI 3rd and 4th Cervical Nerves

A

Innervation of the Trapezius

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12
Q

Upper: External occipital protuberance Middle: Spinous processes of TV 1-6 Lower: Spinous Processes of TV 7-12

A

Proximal Attachment of Trapezius

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13
Q

Upper: Lateral third of clavicle Middle: Acromion and crest of scapular spine Lower: Tubercle of scapular spine

A

Distal Attachment of Trapezius

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14
Q

Dorsal Scapular Artery (3)

A

Blood Supply of Trapezius, Levator Scapulae, Rhomboids

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15
Q

Thoracodorsal Nerve (C6-8) L

A

Innervation of Latissimus Dorsi

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16
Q

Spines of TV 7-12 Lumbar and sacral vertebrae

Posterior iliac crest Ribs 9-12

A

Proximal Attachment of Lat Dorsi

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17
Q

Floor of intertubercular (Bicipital) groove

A

Distal Attachment of Lat

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18
Q

Extends, adducts and rotates the humerus

A

Action of Lat

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19
Q

Thoracodorsal artery

Branch of the subscapular artery

A

Blood Supply of Lat

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20
Q

Cervical Nerves C3-5 Dorsal Scapular Nerve C5

A

Innervation of Levator Scapulae

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21
Q

Transverse processes of CV 1-4

A

Proximal Attachment of Levator Scapulae

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22
Q

Medial border of scapula at level of and above the spine

A

Distal Attachment of Levator Scapulae

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23
Q
  • Elevates the scapula at the superior (medial) angle - Assists in the downward rotation of the scapula
A

Action of Levator Scapulae

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24
Q

Dorsal Scapular Nerve (C5) R

A

Innervation of Rhomboids

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25
Q

Spines of TV 2-4

A

Proximal Attachment of Rhomboid Major

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26
Q

Spines of CV 7 and TV 1

A

Proximal Attachment of Rhomboid Minor

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27
Q

Medial border of scapula from level of the spine inferiorly to the inferior angle

A

Distal Attachment of Rhomboids

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28
Q
  • Adducts scapula - Rotates glenoid fossa downward - Fixes scapula to thoracic wall
A

Action of Rhomboids

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29
Q

Junction of first rib and costal cartilage 1

A

Proximal Attachment of Subclavius

30
Q

Inferior surface of middle third of clavicle

A

Distal Attachment of Subclavius

31
Q

Anchors and depresses clavicle

A

Action of Subclavius

32
Q

Nerve to subclavius (C5, 6)

A

Innervation of Subclavius

33
Q
  • Lateral and medial pectoral nerves
A

Innervation Pectoralis Major

34
Q
  • Anterior surface of the medial half of the clavicle - Anterior surface of the manubrium and body of the sternum - Costal cartilages 2-6 - Aponeurosis of the external oblique
A

Proximal Attachment of Pec Major

35
Q

Lateral lip of the bicipital groove/crest of greater tubercle

A

Distal Attachment of Pec Major

36
Q
  • Adducts and medially rotates arm (humerus) - Flexes arm (clavicular head) - Extends arm (sternal head) from flexed position - Draws scapula anteriorly and inferiorly
A

Action of the Pec Major

37
Q

Medial Pectoral Nerve (C8,T1)

A

Innervation of Pec Minor

38
Q

Ribs 3-5 near costal cartilage

A

Proximal Attachment of Pec Minor

39
Q

Coracoid process

A

Distal Attachment of Pec Minor

40
Q

Draws scapula inferiorly and anteriorly against thoracic wall (stabilizes scapula)

A

Action of Pec Minor

41
Q

Long thoracic nerve (C5-7)

A

Innervation of Serratus Anterior

42
Q

External surface of lateral parts of ribs 1-8

A

Proximal Attachment of Serratus Anterior

43
Q

Anterior surface of medial border of scapula

A

Distal attachment of Serratus Anterior

44
Q
  • Protracts Scapula - Fixes Scapula to Thoracic Wall - Rotates Scapula
A

Action of Serratus Anterior

45
Q

Lateral thoracic artery

A

Blood Supply of Serratus Anterior

46
Q

Axillary Nerve (2)

A

Innervation of Deltoid

Innervation of Teres Minor

47
Q
  • Lateral 1/3 of clavicle - Acromion and spine of scapula
A

Proximal Attachment of Deltoid

48
Q

Deltoid tuberosity of humerus

A

Distal Attachment of Deltoid

49
Q

Flexes, medially rotates, abducts extends and laterally rotates humerus

A

Action of Deltoid

50
Q

Thoracocromial artery

A

Blood Supply of Deltoid

51
Q

Lower Subscapular nerve (C5, 6)

A

Innervation of Teres Major

52
Q

Posterior surface of inferior angle of scapula

A

Proximal Attachment of Teres Major

53
Q

Medial lip of bicipital groove of humerus

A

Distal Attachment of Teres Major

54
Q

Adducts and medially rotates the humerus

A

Action of Teres Major

55
Q

Circumflex scapular artery

A

Blood Supply of Teres Major, Teres Minor

56
Q

Supraspinatus Infraspinatus Teres Minor Subscapularis

A

What are the 4 rotator cuff muscles?

57
Q

Suprascapular Nerve (2)

A

Innervation of Supraspinatus

Infraspinatus

58
Q

Supraspinous fossa of scapula

A

Proximal Attachment of Supraspinatus

59
Q

Superior facet of greater tubercle of humerus

A

Distal Attachment of Supraspinatus

60
Q
  • Works with deltoid in abduction of humerus - Acts with other RC muscles in stabilizing shoulder joint
A

Action of Supraspinatus

61
Q

Suprascapular Artery (3)

A

Blood Supply of Supraspinatus, Infraspinatus, Subscapularis

62
Q

Infraspinous Fossa of Scapula

A

Proximal Attachment of Infraspinatus

63
Q

Middle facet of greater tubercle of humerus

A

Distal Attachment of Infraspinatus

64
Q
  • Laterally rotates humerus - Helps hold humeral head in place
A

Action of Infraspinatus

65
Q

Middle part of lateral border of scapula

A

Proximal Attachment of Teres Minor

66
Q

Inferior facet of greater tubercle of humerus

A

Distal Attachment of Teres Minor

67
Q
  • Laterally rotates humerus - Helps hold humeral head in place
A

Action of Teres Minor

68
Q

Upper and Lower subscapular nerves (C5, 6, 7)

A

Innervation of Subscapularis

69
Q

Subscapular fossa of scapula (anterior surface)

A

Proximal Attachment of Subscapularis

70
Q

Lesser tubercle of humerus

A

Distal Attachment of Subscapularis

71
Q
  • Medially rotates and adducts humerus - Helps hold humeral head in place
A

Action of Subscapularis

Adam KCU Anatomy I Exam 2 (16 decks)

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