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Human Anatomy Myology > Shoulder Myology > Flashcards

Shoulder Myology Flashcards

1
Q

pectoralis major origin

A

medial half of clavicle, anterior sternum, superior 6 costals

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2
Q

pectoralis major insertion

A

lateral lip of intertubercular groove

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3
Q

pectoralis major action

A

horizontal adduction, medial rotation

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4
Q

pectoralis major nerve

A

medial and lateral pectoral nerve

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5
Q

pectoralis minor origin

A

ribs 3-5

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6
Q

pectoralis minor insertion

A

coracoid process

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7
Q

pectoralis minor action

A

scapular protraction and depression

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8
Q

pectoralis minor nerve

A

medial pectoral nerve

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9
Q

subclavius origin

A

junction of first rib and costal cartilage

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10
Q

subclavius insertion

A

inferior surface of clavicle

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11
Q

subclavius action

A

anchors and depresses clavicle

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12
Q

subclavius nerve

A

nerve to subclavius

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13
Q

serratus anterior origin

A

external surface of lateral ribs 1-8

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14
Q

serratus anterior insertion

A

anterior surface of medial border of scapula

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15
Q

serratus anterior action

A

scapular protraction, prevents scapular winging

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16
Q

serratus anterior nerve

A

long thoracic nerve

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17
Q

trapezius origin

A

external occipital protuberance, spinous processes C7-T12

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18
Q

trapezius insertion

A

distal clavicle, AC joint, spine of scapula

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19
Q

upper trapezius action

A

elevates and upwardly rotates scapula

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20
Q

middle trapezius action

A

retracts scapula

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21
Q

lower trapezius action

A

depresses and upwardly rotates scapula

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22
Q

trapezius nerve

A

CN 11 (spinal accessory nerve)

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23
Q

latissimus dorsi origin

A

spinous processes T6-T12, iliac crest, thoracolumbar fascia

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24
Q

latissimus dorsi insertion

A

floor of intertubercular groove

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25
latissimus dorsi action
extension, adduction, internal rotation
26
latissimus dorsi nerve
thoracodorsal nerve
27
levator scapulae origin
transverse processes of C1-C4
28
levator scapulae insertion
superior part of medial border of scapula
29
levator scapulae action
elevates and downwardly rotates scapula
30
levator scapulae nerve
dorsal scapular nerve
31
rhomboid major origin
T2-T5 spinous processes
32
rhomboid minor origin
C7-T1 spinous processes
33
rhomboids insertion
medial border of scapula below spine
34
rhomboids action
scapular retraction, downward rotation
35
rhomboids nerve
dorsal scapular nerve
36
deltoid origin
distal clavicle, AC joint, spine of the scapula
37
deltoid insertion
deltoid tuberosity
38
deltoid action
abduction of shoulder
39
deltoid nerve
axillary nerve
40
teres major origin
dorsal surface of inferior angle of scapula
41
teres major insertion
medial lip of intertubercular groove
42
teres major action
internal rotation and adduction
43
teres major nerve
lower subscapular nerve
44
rotator cuff muscles
supraspinatus, infraspinatus, teres minor, subscapularis
45
supraspinatus origin
supraspinous fossa
46
supraspinatus insertion
superior facet of greater tuberosity
47
supraspinatus action
abduction of shoulder in first 15 deg., compresses glenohumeral joint
48
supraspinatus nerve
suprascapular nerve
49
infraspinatus origin
infraspinous fossa
50
infraspinatus insertion
middle facet of greater tuberosity
51
infraspinatus action
external rotation of shoulder
52
infraspinatus nerve
suprascapular nerve
53
teres minor origin
superior part of lateral scapular border
54
teres minor insertion
inferior facet of greater tuberosity
55
teres minor action
external rotation of shoulder
56
teres minor nerve
axillary nerve
57
subscapularis origin
subscapular fossa
58
subscapularis insertion
lesser tuberosity
59
subscapularis action
internal rotation of shoulder
60
subscapularis nerve
upper and lower subscapular nerves
61
coracobrachialis origin
coracoid process
62
coracobrachialis insertion
middle 1/3 of medial humerus
63
coracobrachialis action
shoulder flexion, adduction
64
coracobrachialis nerve
musculocutaneous nerve
65
biceps brachii origin
long head: supraglenoid tubercle short head: coracoid process
66
biceps brachii insertion
radial tuberosity and bicipital aponeurosis
67
biceps brachii action
elbow and shoulder flexion
68
biceps brachii nerve
musculocutaneous nerve
69
triceps brachii origin
long head: infraglenoid tubercle lateral and medial heads: shaft of humerus
70
triceps brachii insertion
olecranon process
71
triceps brachii action
elbow extension, shoulder extension and adduction
72
triceps brachii nerve
radial nerve

Human Anatomy Myology (5 decks)

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