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General Anatomy (2nd year) > Muscles of the UQ > Flashcards

Muscles of the UQ Flashcards

1
Q

UFT Origin

A

1” behind mastoid process, superior nuchal line, ligamentum nuchae, Supraspinous ligament of c-spine (C1-C7) , SP of C7

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2
Q

MFT Origin

A

SP of T1-T5

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3
Q

LFT Origin

A

SP of T6-T12

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4
Q

UFT Insertion

A

posterior border of the lateral 1/3rd of the clavicle , acromion process of scapula

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5
Q

MFT Insertion

A

medial margin of acromion process. superior lip of crest of the spine of scapula

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6
Q

LFT Insertion

A

tubercle of spine of scapula (superior aspect)

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7
Q

Trapezius Actions

A

elevation of the scapula (UFT), upward rotation of scapula (all 3), retraction of scapula (all 3), depression of scapula (LFT), pull head backwards (bilateral contraction)(UFT) , pull head laterally (unilateral contraction)(UFT) , rotate head to opposite side (UFT)

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8
Q

Trapezius Nerve

A

spinal accessory nerve, CN XI (cranial nerve 11)

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9
Q

Levator Scapulae Origin

A

posterior tubercles of TPs of C1 to C4

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10
Q

Levator Scapulae Insertion

A

superior angle of scapula, vertebral border of the scapula until it reaches the root of the spine of the scapula

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11
Q

Levator Scapulae Actions

A

elevation of scapula (with origin fixed), Retraction (limited due to FD), downward rotation of scapula, Side bend of head (unilateral contraction), assists in extension of the C/S (bilateral contraction)

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12
Q

Levator Scapulae Nerve

A

Dorsal Scapular C4, 5

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13
Q

Rhomboid Major Origin

A

SP of T2 to T5, supraspinous ligament

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14
Q

Rhomboid Major Insertion

A

vertebral border just below the root of the spine to inferior angle

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15
Q

Rhomboid Major Actions

A

Retraction, elevation. downward rotation

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16
Q

Rhomboid Major Nerve

A

dorsal scapular nerve C4, C5

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17
Q

Rhomboid Minor Origin

A

lower ligamentum nuchae, SP of C7 & T1

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18
Q

Rhomboid Minor Insertion

A

vertebral border, At root of the spine of the scapula

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19
Q

Rhomboid Minor Actions

A

Retraction, Elevation, downward rotation

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20
Q

Rhomboid Minor Nerve

A

dorsal scapular nerve C4, C5

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21
Q

Serratus Anterior Origin

A

finger like slips (serratus), from outer surfaces of upper eight ribs

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22
Q

Serratus Anterior Insertion

A

Ventral/costal surface of vertebral border of scapula

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23
Q

Serratus Anterior Actions

A

upward rotation of scapula, protraction of scapula, holds medial border of scapula against rib

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24
Q

Serratus Anterior Nerve

A

Long Thoracic Nerve, C5 to upper 2 slips, C6 to middle 2 slips, C7 to lower 4 slips

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25
Q

Pectoralis Minor Origin

A

superior outer border of anterior end of ribs 3,4, & 5 , lateral to costal cartilage

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26
Q

Pectoralis Minor Insertion

A

medial border of coracoid process

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27
Q

Pectoralis Minor Actions

A

protraction of scapula, downward rotation of scapula, aids with forced inspiration

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28
Q

Pectoralis Minor Nerve

A

Medial Pectoral Nerve C 6, 7, 8, T1

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29
Q

Pectoralis Major Clavicular Head Origin

A

Anterior aspect of medial half of clavicle

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30
Q

Pectoralis Major Sternal Head Origin

A

Length of sternum, cartilages of upper 6 ribs, fascia

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31
Q

Pectoralis Major Clavicular Head Insertion

A

lateral lip of bicipital groove of humerus, broad aponeurosis

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32
Q

Pectoralis Major Sternal Head Insertion

A

Lateral lip of bicipital groove, proximal & posterior to clavicular head

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33
Q

Pectoralis Major Action

A

adduction, internal rotation, flexion/extension of GH joint (extends GH from 90 of flexion to 0, deep inspiration

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34
Q

Pectoralis Major Nerve

A

Lateral pectoral C5-7 (upper & lower), Medial pectoral C8 & T1 (lower fibres)

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35
Q

Latissumus Dorsi Origin

A

SP’s of T6-T12, SP’s of L1-L5, upper sacral, posterior 1/2 of iliac crest, lower 3 or 4 ribs, inferior angle of scapula

36
Q

Latissumus Dorsi Insertion

A

floor of bicipital groove (underneath biceps tendon), infront of teres major tendon, forms posterior fold of axilla

37
Q

Latissumus Dorsi Action

A

extension of GH joint, adduction of GH joint, internal rotation of GH joint, raises trunk to hands in climbing, respiration, prevents upward push of shoulder girdle

38
Q

Latissumus Dorsi Nerve

A

Thoraco-dorsal nerve C6-8 (posterior cord of brachial plexus)

39
Q

Teres Major Origin

A

dorsal surface of inferior angle, lower 1/3 of axillary border of scapula

40
Q

Teres Major Insertion

A

medial lip of bicipital groove

41
Q

Teres Major Action

A

extension, adduction, internal rotation of GH joint

42
Q

Teres Major Nerve

A

lower subscapular nerve C5-7

43
Q

Teres Minor Origin

A

upper 2/3 of axillary border of scapula

44
Q

Teres Minor Insertion

A

inferior facet of the greater tuberosity (posterior aspect), lower part of GH capsule

45
Q

Teres Minor Action

A

extension & lateral rotation of GH joint, coaptation

46
Q

Teres Minor Nerve

A

Circumflex (axillary) nerve

47
Q

Subscapularis Origin

A

subscaular fossa

48
Q

Subscapularis Insertion

A

lesser tuberosity, anterior aspect of capsule of GH joint, posterior wall of axilla

49
Q

Subscapularis Action

A

medial rotation of GH joint, stabilizes anterior GH joint, coaptation

50
Q

Subscapularis Nerve

A

Upper & Lower Subscapular Nerve

51
Q

Supraspinatus Origin

A

supraspinous fossa

52
Q

Supraspinatus Insertion

A

superior facet of greater tuberosity, blends with capsule

53
Q

Supraspinatus Action

A

abduction of GH joint (initiates first 10-20›), holds head of humerus in glenoid cavity

54
Q

Supraspinatus Nerve

A

Suprascapular Nerve C4-6

55
Q

Infraspinatus Origin

A

infraspinatus fossa

56
Q

Infraspinatus Insertion

A

middle facet of greater tuberosity (posteriorly), posterior joint capsule

57
Q

Infraspinatus Action

A

Extension, lateral rotation of GH joint, stabilizes head of humerus (coaptation)

58
Q

Infraspinatus Nerve

A

Suprascapular Nerve C4-6

59
Q

Deltoid Anterior Fibre Origin

A

anterior aspect of lateral third of clavicle

60
Q

Deltoid Middle Fibre Origin

A

lateral superior border of acromion

61
Q

Deltoid Posterior Fibre Origin

A

inferior border of crest of spine of scapula

62
Q

Deltoid Insertion

A

deltoid tuberosity, lateral aspect of the mid-shaft of the humerus

63
Q

Deltoid Action

A

abduction, flexion, extension, medial & lateral rotation of GH joint

64
Q

Deltoid Nerve

A

Axillary Nerve C5-6

65
Q

Coracobrachialais Origin

A

tip of coracoid process, tendinous origin, shares origin with biceps brachii

66
Q

Coracobrachialais Insertion

A

halfway down medial border of shaft of humerus

67
Q

Coracobrachialais Action

A

adduction & flexion of GH joint

68
Q

Coracobrachialis Nerve

A

musculocutaneous Nerve C6-7

69
Q

Biceps Brachii Short Head Origin

A

tip of the coracoid process, shares with coracoidbrachialis

70
Q

Biceps Brachii Long Head Origin

A

supraglenoid tubercle of scapula (travels through bicipital groove)

71
Q

Biceps Brachii Insertion

A

Tuberosity of the radius, bicipital aponeurosis

72
Q

Biceps Brachii Action

A

supination of radio-ulnar joint, flexion of elbow, flexion of GH joint, stabilizes head of humerus

73
Q

Biceps Brachii Nerve

A

musculocutaneous Nerve C5-7

74
Q

Brachialis Origin

A

lower 1/2 of anterior humerus

75
Q

Brachialis Insertion

A

ulnar tuberosity

76
Q

Brachialis Action

A

elbow extension

77
Q

Brachialis Nerve

A

musculocutaneous nerve

78
Q

Triceps Long Head Origin

A

infrglenoid tuberclem blends with fibrous capsule

79
Q

Triceps Lateral Head Origin

A

posterior inferior aspect of greater tuberosity (above radial groove)

80
Q

Triceps Medial Head Origin

A

posterior distal hald of humerus, below radial groove, deep to other two heads

81
Q

Triceps Insertion

A

posterior edge of superior aspect of the olecranon process

82
Q

Triceps Action

A

extension of the elbow joint, extension of the GH joint, stabilizes inferior aspect of the GH joint

83
Q

Triceps Nerve

A

Radial nerve C6-8, T1

84
Q

Anconeus Origin

A

lateral epicondyle, posterior surface of the humerus

85
Q

Anconeus Insertion

A

lateral side of olecranon process, upper 1/4 of posterior surface of ulna

86
Q

Anconeus Action

A

extension of elbow joint, stabilizes ulna during pronation/supination

87
Q

Anconeus Nerve

A

Radial nerve C7-8

General Anatomy (2nd year) (8 decks)

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