Muscles

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1

epicranius location

forehead

<p>forehead</p>
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2

epicranius bony attachment

cranial aponeurosis

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3

epicranius soft tissue attachment

skin on forehead

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4

epicranius function

wrinkles forehead and moves scalp, elevates eyebrows

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5

orbicularis oculi location

around the eye

<p>around the eye</p>
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6

orbicularis oculi bony attachment

margin of the orbit of eye

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orbicularis oculi function

closes eye

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8

orbicularis oculi soft tissue attachment

skin around eyelids

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9

.zygomaticus location

cheekbones to corners of mouth

<p>cheekbones to corners of mouth</p>
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10

zygomaticus bony attachment

zygomatic bone

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11

zygomaticus soft tissue attachment

skin around mouth

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12

zygomaticus function

elevates corners of mouth and lips (smile)

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13

orbicularis oris location

surrounds mouth

<p>surrounds mouth</p>
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14

orbicularis oris bony attachment

maxilla and mandible

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15

orbicularis oris soft tissue attachment

skin around lips

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16

orbicularis oris function

purses and protrudes lips (kissing, puckering)

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17

platysma location

front of neck, cheek to under collarbones, superficial

<p>front of neck, cheek to under collarbones, superficial</p>
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platysma bony attachment

fascia of upper thorax and lower neck

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19

platysma soft tissue attachment

skin of cheek and mandible

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20

platysma function

depresses lower lip, tenses skin of neck

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21

temporalis location

temporal bone

<p>temporal bone</p>
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22

temporalis superior attachment

temporal bone

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23

temporalis inferior attachment

coronoid process of mandible

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24

temporalis function

elevates and retracts mandible

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25

masseter location

covers lateral portion of jaw

<p>covers lateral portion of jaw</p>
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26

masseter superior attachment

zygomatic arch

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27

masseter inferior attachment

ramus of mandible

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28

masseter function

elevates and protracts mandible

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29

Sternocleidomastoid location

diagonally across neck from sternum to clavicle, deep to platysma

<p>diagonally across neck from sternum to clavicle, deep to platysma</p>
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30

sternocleidomastoid superior attachment

mastoid process of temporal bone

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31

sternocleidomastoid inferior attachment

sternum and clavicle

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32

sternocleidomastoid function

alone: laterally rotates neck to opposite side

together: flexes neck

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33

external intercostals location

between ribs; fibers run inferiorly and anteriorly

<p>between ribs; fibers run inferiorly and anteriorly</p>
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34

external intercostals superior attachment

ribs

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35

external intercostals inferior attachment

ribs

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36

external intercostals function

elevates ribs during inspiration

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37

internal intercostals location

between ribs, deep to external intercostals, run in opposite direction

<p>between ribs, deep to external intercostals, run in opposite direction</p>
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38

internal intercostals superior attachment

ribs

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39

internal intercostals inferior attachment

ribs

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40

internal intercostals function

depresses ribs during expiration

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41

diaphragm location

large dome shaped muscle that divides the thoracic and abdominopelvic cavities

<p>large dome shaped muscle that divides the thoracic and abdominopelvic cavities</p>
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42

diaphragm superior attachment

central tendon

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43

diaphragm inferior attachment

lumbar vertebrae, cartilage of ribs 7-12, xiphoid process

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44

diaphragm function

primary driver of inspiration

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45

rectus abdominus location

central on abdomen

<p>central on abdomen</p>
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46

rectus abdominus superior attachment

xiphoid process and 5th-7th costal cartilages

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47

rectus abdominus inferior attachment

pubic symphysis and pubic crest

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48

rectus abdominus function

compression of abdomen, flexion and rotation of trunk

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49

external oblique location

superficial lateral muscle, fibers running medially on an angle

<p>superficial lateral muscle, fibers running medially on an angle</p>
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50

external oblique superior attachment

anterior surface of inferior 8 ribs

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51

external oblique inferior attachment

linea alba and iliac crest

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52

external oblique function

compression of abdomen

alone: rotation of trunk

together: flexion of trunk

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53

internal oblique location

deep to external oblique; fibers run in opposite orientation

<p>deep to external oblique; fibers run in opposite orientation</p>
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54

internal oblique superior attachment

iliac crest, inguinal ligament

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55

internal oblique inferior attachment

iliac crest, linea alba, ribs

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56

internal oblique function

compression of abdomen

alone: rotation of trunk

together: flexion of trunk

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57

transversus abdominis location

deep to internal oblique, fibers run in a transverse plane

<p>deep to internal oblique, fibers run in a transverse plane</p>
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58

transversus abdominis superior attachment

iliac crest, inguinal ligament, cartilages of ribs

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59

transversus abdominis inferior attachment

linea alba and pubic crest

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60

transversus abdominis function

compresses abdomen

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61

rectus sheath

CT sheath surrounding rectus abdominis, formed from aponeuroses of external and internal oblique and transverse abdominis muscles

<p>CT sheath surrounding rectus abdominis, formed from aponeuroses of external and internal oblique and transverse abdominis muscles</p>
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62

linea alba

tendinous structures that serves as an insertion point for external and internal oblique and transversus abdominis muscles

<p>tendinous structures that serves as an insertion point for external and internal oblique and transversus abdominis muscles</p>
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63

Serratus anterior location

lateral portion of thoracic wall

<p>lateral portion of thoracic wall</p>
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64

serratus anterior proximal attachment

ribs 1-8

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65

serratus anterior distal attachment

medial border of scapula

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66

serratus anterior function

protracts scapula, rotates scapula anteriorly, holds scapula against rib cage

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67

pectoralis minor location

deep to pectoralis major

<p>deep to pectoralis major</p>
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68

pectoralis minor proximal attachment

ribs 3-5

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69

pectoralis minor distal attachment

coracoid process of scapula

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70

pectoralis minor function

protracts and depresses scapula, elevates ribcage, flexed, adducts, medially rotates arm

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71

trapezius location

diamond shaped muscle on superior portion of back (superficial)

<p>diamond shaped muscle on superior portion of back (superficial)</p>
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72

Trapezius proximal attachment

occipital bone, spinous process of C7-T12

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73

Trapezius Distal Attachment

clavicle; acromial process and spine of scapula

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74

trapezius function

elevates and rotates, retracts and depresses scapula

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75

rhomboids location

deep to trapezius

<p>deep to trapezius</p>
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76

Rhomboids proximal attachment

spinous process of C7-T5

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77

Rhomboids distal attachment

medial border of scapula

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78

rhomboids function

retracts, elevates, adducts and stabilizes scapula

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79

pectoralis major location

upper thorax

<p>upper thorax</p>
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80

pectoralis major proximal attachment

sternum, medial clavicle, costal cartilage of ribs 2-6

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81

pectoralis major distal attachment

intertubercular groove of humerus

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82

pectoralis major function

flexes, adducts, medially rotates arm

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83

deltoid location

superior muscle of shoulder

<p>superior muscle of shoulder</p>
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84

Deltoid proximal attachment

clavicle, acromion, spine of scapula

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85

Deltoid distal attachment

deltoid tuberosity of humerus

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86

deltoid function

flexes, extends, adducts, abducts, medially, laterally rotates arm

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87

biceps brachii location

superficial muscle on anterior arm

<p>superficial muscle on anterior arm</p>
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88

biceps brachii proximal attachment

coracoid process of scapula

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89

biceps brachii distal attachment

radial tuberosity

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90

biceps brachii function

weakly flexes arm, powerfully flexes forearm, supinates forearm

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91

brachialis location

deep to biceps brachii

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92

brachialis proximal attachment

humerus

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93

brachialis distal attachment

coronoid process of ulna

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94

brachialis function

flexes forearm

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95

Brachioradialis proximal attachment

humerus

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96

Brachioradialis location

lateral interior forearm (by thumb)

<p>lateral interior forearm (by thumb)</p>
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97

Brachioradialis distal attachment

styloid process of radius

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98

Brachioradialis function

flexes forearm

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99

pronator teres location

anterior elbow and proximal forearm (pinky side, wraps around)

<p>anterior elbow and proximal forearm (pinky side, wraps around)</p>
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100

pronator teres proximal attachment

humerus

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