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Musculoskeletal System > Shoulder Girdle and Joint > Flashcards

Shoulder Girdle and Joint Flashcards

1
Q

Ligaments

A

Glenohumeral ligaments
- Superior
- Middle
- Inferior
Coracohumeral ligament
Transverse humeral ligament
Coraco-acromial ligament

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2
Q

Bursae

A

Subtendinous bursa
Subacromial bursa
Subdeltoid bursa

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3
Q

TRAPEZIUS (Origin)

A

Superior nuchal line
External Occipital protuberance
Nuchal ligament
Spinous Process C7 to T12

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4
Q

TRAPEZIUS (Insertion)

A
  1. UPPER fibres - lateral 1/3 clavicle
  2. MIDDLE fibres - acromion and scapula spine
  3. LOWER fibres - tubercle of scapula spine
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5
Q

TRAPEZIUS (Action)

A
  1. UPPER = Elevation, Abduction beyond 90°
  2. MIDDLE = Retraction
  3. LOWER = Depression
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6
Q

TRAPEZIUS (Innervation)

A

Accessory Nerve (CN XI)

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7
Q

LEVATOR SCAPULAE (Origin)

A

Transverse processes C1-C4

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8
Q

LEVATOR SCAPULAE (Insertion)

A

Superior part of Medial border of scapula

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9
Q

LEVATOR SCAPULAE (Action)

A

Elevation of shoulder
Lateral rotation of scapula

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10
Q

LEVATOR SCAPULAE (Innervation)

A

Dorsal Scapular Nerve (C5)
Anterior rami C3- C5

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11
Q

RHOMBOID MINOR (Origin)

A

Lower end nuchal ligament
Spinous Process C7-T1

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12
Q

RHOMBOID MINOR (Insertion)

A

Medial border of scapula … to … root of spine of scapula

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13
Q

RHOMBOID MAJOR (Origin)

A

Spinous Process T1-T4

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14
Q

RHOMBOID MAJOR (Insertion)

A

Medial border of scapula … to … inferior angle of scapula

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15
Q

RHOMBOID MINOR AND MAJOR (Action)

A

Holds scapula against thoracic wall
Retracts scapula
Assists in elevation of scapula

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16
Q

RHOMBOID MINOR AND MAJOR (Innervation)

A

Dorsal Scapular Nerve (C4-C5)

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17
Q

SERRATUS ANTERIOR (Origin)

A

Ribs 1-8
(Finger-like processes)

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18
Q

SERRATUS ANTERIOR (Insertion)

A

Costal surface of Medial border of scapula

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19
Q

SERRATUS ANTERIOR (Action)

A

Holds scapula against thoracic wall
Protraction and Rotation of scapula

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20
Q

SERRATUS ANTERIOR (Innervation)

A

Long Thoracic Nerve (C5-C7)

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21
Q

SUBCLAVIUS (Origin)

A

1st Rib and costal cartilage

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22
Q

SUBCLAVIUS (Insertion)

A

Inferior surface of Middle 1/3 clavicle

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23
Q

SUBCLAVIUS (Action)

A

Anchors and Depresses clavicle

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24
Q

SUBCLAVIUS (Innervation)

A

Nerve to subclavius (C5-C6)

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25
Q

PECTORALIS MAJOR (Origin)

A

Anterior border of Medial half of clavicle
Anterior surface of Sternum and Ribs 1-7 costal cartilage
Aponeurosis of External Oblique muscle

26
Q

PECTORALIS MAJOR (Insertion)

A

Lateral lip of intertubercular sulcus of humerus

27
Q

PECTORALIS MAJOR (Action)

A

Adduction
Medial rotation
Clavicular fibres flex at shoulder joint

28
Q

PECTORALIS MAJOR (Innervation)

A

Medial Pectoral Nerve
Lateral Pectoral Nerve

29
Q

PECTORALIS MINOR (Origin)

A

Anterior surfaces and Superior border of Ribs 3-5

30
Q

PECTORALIS MINOR (Insertion)

A

Medial border of Coracoid process of scapula

31
Q

PECTORALIS MINOR (Action)

A

Protracts and Depresses shoulder

32
Q

PECTORALIS MINOR (Innervation)

A

Medial Pectoral Nerve

33
Q

LATISSIMUS DORSI (Origin)

A

Spinous Processes T7- L5
Posterior surface of Sacrum
Posterior part of Iliac crest
Rib 9-12

34
Q

LATISSIMUS DORSI (Origin)

A

Floor of intertubercular sulcus

35
Q

LATISSIMUS DORSI (Action)

A

Extension
Medial rotation
Adduction

36
Q

LATISSIMUS DORSI (Innervation)

A

Thoracodorsal Nerve (C6-C8)

37
Q

DELTOID (Origin)

A

Anterior border of Lateral 1/3 of Clavicle
Inferior lip of spine of scapula
Lateral border of Acromion

38
Q

DELTOID (Insertion)

A

Deltoid tuberosity of humerus

39
Q

DELTOID (Action)

A

Abduction 15°-90°
ANTERIOR fibres - flex and medially rotate
POSTERIOR fibres - extend and laterally rotate

40
Q

DELTOID (Innervation)

A

Axillary Nerve (C5-C6)

41
Q

TERES MAJOR (Origin)

A

Posterior surface of inferior angle of Lateral border of scapula

42
Q

TERES MAJOR (Insertion)

A

Medial lip of intertubercular sulcus

43
Q

TERES MAJOR (Action)

A

Medial rotation
Extension

44
Q

TERES MAJOR (Innervation)

A

Lower Subscapular Nerve (C5-C7)

45
Q

ROTATOR CUFF MUSCLES

A

Supraspinatus Muscle
Infraspinatus Muscle
Teres Minor Muscle
Subscapularis Muscle

46
Q

SUPRASPINATUS (Origin)

A

Supraspinous fossa

47
Q

SUPRASPINATUS (Insertion)

A

Superior facet of greater tubercle of humerus

48
Q

SUPRASPINATUS (Action)

A

Abduction 0°-15°

49
Q

SUPRASPINATUS (Innervation)

A

Suprascapular Nerve (C5-C6)

50
Q

INFRASPINATUS (Origin)

A

Infraspinous fossa

51
Q

INFRASPINATUS (Insertion)

A

Middle facet of greater tubercle of humerus

52
Q

INFRASPINATUS (Action)

A

Lateral Rotation

53
Q

INFRASPINATUS (Innervation)

A

Suprascapular Nerve (C5-C6)

54
Q

TERES MINOR (Origin)

A

Upper 2/3 of Posterior surface of Lateral border of scapula

55
Q

TERES MINOR (Insertion)

A

Inferior facet of greater tubercle of humerus

56
Q

TERES MINOR (Action)

A

Lateral Rotation

57
Q

TERES MINOR (Innervation)

A

Axillary Nerve (C5-C6)

58
Q

SUBSCAPULARIS (Origin)

A

Subscapular fossa

59
Q

SUBSCAPULARIS (Insertion)

A

Lesser tubercle of humerus

60
Q

SUBSCAPULARIS (Action)

A

Adduction
Medial Rotation

61
Q

SUBSCAPULARIS (Innervation)

A

Upper and Lower Subscapular Nerves (C5-C6)

Musculoskeletal System (17 decks)

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