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

Muscles of the UQ Flashcards

(87 cards)

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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
Pectoralis Minor Origin
superior outer border of anterior end of ribs 3,4, & 5 , lateral to costal cartilage
26
Pectoralis Minor Insertion
medial border of coracoid process
27
Pectoralis Minor Actions
protraction of scapula, downward rotation of scapula, aids with forced inspiration
28
Pectoralis Minor Nerve
Medial Pectoral Nerve C 6, 7, 8, T1
29
Pectoralis Major Clavicular Head Origin
Anterior aspect of medial half of clavicle
30
Pectoralis Major Sternal Head Origin
Length of sternum, cartilages of upper 6 ribs, fascia
31
Pectoralis Major Clavicular Head Insertion
lateral lip of bicipital groove of humerus, broad aponeurosis
32
Pectoralis Major Sternal Head Insertion
Lateral lip of bicipital groove, proximal & posterior to clavicular head
33
Pectoralis Major Action
adduction, internal rotation, flexion/extension of GH joint (extends GH from 90 of flexion to 0, deep inspiration
34
Pectoralis Major Nerve
Lateral pectoral C5-7 (upper & lower), Medial pectoral C8 & T1 (lower fibres)
35
Latissumus Dorsi Origin
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
Latissumus Dorsi Insertion
floor of bicipital groove (underneath biceps tendon), infront of teres major tendon, forms posterior fold of axilla
37
Latissumus Dorsi Action
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
Latissumus Dorsi Nerve
Thoraco-dorsal nerve C6-8 (posterior cord of brachial plexus)
39
Teres Major Origin
dorsal surface of inferior angle, lower 1/3 of axillary border of scapula
40
Teres Major Insertion
medial lip of bicipital groove
41
Teres Major Action
extension, adduction, internal rotation of GH joint
42
Teres Major Nerve
lower subscapular nerve C5-7
43
Teres Minor Origin
upper 2/3 of axillary border of scapula
44
Teres Minor Insertion
inferior facet of the greater tuberosity (posterior aspect), lower part of GH capsule
45
Teres Minor Action
extension & lateral rotation of GH joint, coaptation
46
Teres Minor Nerve
Circumflex (axillary) nerve
47
Subscapularis Origin
subscaular fossa
48
Subscapularis Insertion
lesser tuberosity, anterior aspect of capsule of GH joint, posterior wall of axilla
49
Subscapularis Action
medial rotation of GH joint, stabilizes anterior GH joint, coaptation
50
Subscapularis Nerve
Upper & Lower Subscapular Nerve
51
Supraspinatus Origin
supraspinous fossa
52
Supraspinatus Insertion
superior facet of greater tuberosity, blends with capsule
53
Supraspinatus Action
abduction of GH joint (initiates first 10-20›), holds head of humerus in glenoid cavity
54
Supraspinatus Nerve
Suprascapular Nerve C4-6
55
Infraspinatus Origin
infraspinatus fossa
56
Infraspinatus Insertion
middle facet of greater tuberosity (posteriorly), posterior joint capsule
57
Infraspinatus Action
Extension, lateral rotation of GH joint, stabilizes head of humerus (coaptation)
58
Infraspinatus Nerve
Suprascapular Nerve C4-6
59
Deltoid Anterior Fibre Origin
anterior aspect of lateral third of clavicle
60
Deltoid Middle Fibre Origin
lateral superior border of acromion
61
Deltoid Posterior Fibre Origin
inferior border of crest of spine of scapula
62
Deltoid Insertion
deltoid tuberosity, lateral aspect of the mid-shaft of the humerus
63
Deltoid Action
abduction, flexion, extension, medial & lateral rotation of GH joint
64
Deltoid Nerve
Axillary Nerve C5-6
65
Coracobrachialais Origin
tip of coracoid process, tendinous origin, shares origin with biceps brachii
66
Coracobrachialais Insertion
halfway down medial border of shaft of humerus
67
Coracobrachialais Action
adduction & flexion of GH joint
68
Coracobrachialis Nerve
musculocutaneous Nerve C6-7
69
Biceps Brachii Short Head Origin
tip of the coracoid process, shares with coracoidbrachialis
70
Biceps Brachii Long Head Origin
supraglenoid tubercle of scapula (travels through bicipital groove)
71
Biceps Brachii Insertion
Tuberosity of the radius, bicipital aponeurosis
72
Biceps Brachii Action
supination of radio-ulnar joint, flexion of elbow, flexion of GH joint, stabilizes head of humerus
73
Biceps Brachii Nerve
musculocutaneous Nerve C5-7
74
Brachialis Origin
lower 1/2 of anterior humerus
75
Brachialis Insertion
ulnar tuberosity
76
Brachialis Action
elbow extension
77
Brachialis Nerve
musculocutaneous nerve
78
Triceps Long Head Origin
infrglenoid tuberclem blends with fibrous capsule
79
Triceps Lateral Head Origin
posterior inferior aspect of greater tuberosity (above radial groove)
80
Triceps Medial Head Origin
posterior distal hald of humerus, below radial groove, deep to other two heads
81
Triceps Insertion
posterior edge of superior aspect of the olecranon process
82
Triceps Action
extension of the elbow joint, extension of the GH joint, stabilizes inferior aspect of the GH joint
83
Triceps Nerve
Radial nerve C6-8, T1
84
Anconeus Origin
lateral epicondyle, posterior surface of the humerus
85
Anconeus Insertion
lateral side of olecranon process, upper 1/4 of posterior surface of ulna
86
Anconeus Action
extension of elbow joint, stabilizes ulna during pronation/supination
87
Anconeus Nerve
Radial nerve C7-8

General Anatomy (2nd year) (8 decks)

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