Shoulder muscles

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biceps brachii action?

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72 Terms

1

biceps brachii action?

Shoulder flexion (weak) -Elbow flexion -supination

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2

biceps brachii insertion?

radial tuberosity

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3

biceps brachii nerve?

musculocutaneous n.

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4

biceps brachii origin?

Glenoid (long head) -Coracoid (short head)

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5

Coracobrachialis action?

Flexion -Horizontal adduction

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6

Coracobrachialis insertion?

medial 1/3 of humerus

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7

Coracobrachialis nerve?

musculocutaneous n.

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8

Coracobrachialis origin?

Coracoid process

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9

deltoid action?

Flexion (ant.) -Abduction (mid.) -Extension (post.)

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10

deltoid insertion?

deltoid tuberosity

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11

deltoid nerve?

Axillary n.

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12

deltoid origin?

scapula -clavicle

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13

Infraspinatus (RC) action?

external rotation

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14

Infraspinatus (RC) insertion?

greater tubercle

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15

Infraspinatus (RC) nerve?

suprascapular n.

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16

Infraspinatus (RC) origin?

infraspinous fossa

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17

latissiumus dorsi action?

Extension -Adduction -Internal Rotation

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18

latissiumus dorsi insertion?

lesser tubercle

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19

latissiumus dorsi nerve?

thoracodorsal n.

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20

latissiumus dorsi origin?

thoracolumbar fascia -thoracic vertebrae -lumbar vertebrae

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21

levator scapulae action?

Scapular elevation -Neck extension

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22

levator scapulae insertion?

Superior/medial portion of scapula

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23

levator scapulae nerve?

Nerve roots C2-C4

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24

levator scapulae origin?

Transverse process of C1-C4

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25

pectoralis major action?

Adduction -Horizontal adduction -Flexion

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26

pectoralis major insertion?

lesser tubercle

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27

pectoralis major nerve?

medial and lateral pectoral n.

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28

pectoralis major origin?

Clavicle -Sternum -Ribs

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29

pectoralis minor action?

Protraction of scapula

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30

pectoralis minor insertion?

Coracoid Process

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31

pectoralis minor nerve?

medial pectoral n.

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32

pectoralis minor origin?

Ribs (3-5)

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33

rhomboid major action?

Scapular retraction

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34

rhomboid major insertion?

medial border of scapula

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35

rhomboid major nerve?

dorsal scapular n.

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36

rhomboid major origin?

T2-T5

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37

rhomboid minor action?

scapular retraction

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38

rhomboid minor insertion?

medial border of scapula

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39

rhomboid minor nerve?

dorsal scapular n.

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40

rhomboid minor origin?

C7-T1

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41

serratus anterior action?

Scapular protraction

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42

serratus anterior insertion?

Medial border of scapula

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43

serratus anterior nerve?

Long thoracic

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44

serratus anterior origin?

angles of ribs (1-8)

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45

Subclavius action?

Depresses clavicle

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46

Subclavius insertion?

inferior clavicle

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47

Subclavius nerve?

Nerve to subclavius

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48

Subclavius origin?

1st rib

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49

subscapularis (RC) action?

internal rotation

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50

subscapularis (RC) insertion?

lesser tubercle

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51

subscapularis (RC) nerve?

subscapular n.

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52

subscapularis (RC) origin?

subscapular fossa

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53

supraspinatus (RC) action?

Abduction

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54

supraspinatus (RC) insertion?

greater tubercle

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55

supraspinatus (RC) nerve?

suprascapular n.

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56

supraspinatus (RC) origin?

supraspinous fossa

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57

teres major action?

extension -adduction -internal rotation

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58

teres major insertion?

lesser tubercle

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59

teres major nerve?

axillary n.

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60

teres major origin?

lateral border of scapula

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61

teres minor (RC) action?

external rotation

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62

teres minor (RC) insertion?

greater tubercle

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63

teres minor (RC) nerve?

axillary n.

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64

teres minor (RC) origin?

lateral border of scapula

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65

Triceps Brachii action?

shoulder extension (weak) -elbow extension

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66

Triceps Brachii insertion?

olecranon process

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67

Triceps Brachii nerve?

radial n.

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68

Triceps Brachii origin?

lateral border of scapula (long head) -Posterior humerus (medial & lateral heads)

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69

upper trapezius action?

Scapular elevation -Neck extension

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70

upper trapezius insertion?

Lateral 1/3 clavicle -Acromion process

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71

upper trapezius nerve?

spinal accessory n.

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72

upper trapezius origin?

external occipital protuberance -Occiput -SP of C7

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