Muscles of the Axial Skeleton Flashcards Preview

Anatomy & Physiology Series > Muscles of the Axial Skeleton > Flashcards

Flashcards in Muscles of the Axial Skeleton Deck (103):
1

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Levator scapulae

•Action: Raises scapula

•Origin: Transverse process of C1-C4

•Insertion: Superior border of the scapula 

2

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Levator scapulae

•Action: Raises scapula

•Origin: Transverse process of C1-C4

•Insertion: Superior border of the scapula 

3

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Levator scapulae

•Action: Raises scapula

•Origin: Transverse process of C1-C4

•Insertion: Superior border of the scapula 

4

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Sternohyoid  

•Action:Depress larynx

•Origin: Manubrium & clavicle

•Insertion: Hyoid bone 

5

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Levator scapulae

•Action: Raises scapula

•Origin: Transverse process of C1-C4

•Insertion: Superior border of the scapula 

6

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Sternohyoid

•Action: Depress larynx

•Origin: Manubrium & clavicle

•Insertion: Hyoid bone 

7

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Mylohyoid

•Action: Elevates hyoid bone during swallowing

•Origin: Medial mandible

•Insertion: Hyoid bone 

8

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Mylohyoid

•Action: Elevates hyoid bone during swallowing

•Origin: Medial mandible

•Insertion: Hyoid bone 

9

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Stylohyoid 

•Action: Elevates and retracts hyoid bone

•Origin: Styloid process of temporal bone

•Insertion: Hyoid bone 

10

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Stylohyoid 

•Action:Elevates and retracts hyoid bone

•Origin: Styloid process of temporal bone

•Insertion: Hyoid bone 

11

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Sternohyoid

•Action: Depress larynx

•Origin: Manubrium & clavicle

•Insertion: Hyoid bone 

12

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Stylohyoid 

•Action:Elevates and retracts hyoid bone

•Origin: Styloid process of temporal bone

•Insertion: Hyoid bone 

13

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Digastrics

•Action: Elevates hyoid bone, open mouth, depress mandible

•Origin: Lower mandible & mastoid process

•Insertion: Hyoid bone 

 

14

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Stylohyoid

•Action:Elevates and retracts hyoid bone

•Origin: Styloid process of temporal bone

•Insertion: Hyoid bone 

15

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Digastrics

•Action: Elevates hyoid bone, open mouth, depress mandible

•Origin: Lower mandible & mastoid process

•Insertion: Hyoid bone 

16

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Digastrics

•Action: Elevates hyoid bone, open mouth, depress mandible

•Origin: Lower mandible & mastoid process

•Insertion: Hyoid bone 

17

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Digastrics

•Action: Elevates hyoid bone, open mouth, depress mandible

•Origin: Lower mandible & mastoid process

•Insertion: Hyoid bone 

18

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Digastrics

•Action: Elevates hyoid bone, open mouth, depress mandible

•Origin: Lower mandible & mastoid process

•Insertion: Hyoid bone 

19

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Scalenes

•Action: Flex & rotate neck, elevate ribs

•Origin: Transverse process of cervical vertebrae

•Insertion: Ribs 1 & 2

20

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Scalenes

•Action: Flex & rotate neck, elevate ribs

•Origin: Transverse process of cervical vertebrae

•Insertion: Ribs 1 & 2

21

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Sternocleidomastoid

•Action: Flex neck & rotate head

•Origin: Manubrium of sternum & clavicle

•Insertion: Mastoid process of temporal bone, superior to nuchal line of occipital bone 

22

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Sternocleidomastoid

•Action: Flex neck & rotate head

•Origin: Manubrium of sternum & clavicle

•Insertion: Mastoid process of temporal bone, superior to nuchal line of occipital bone 

23

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Sternocleidomastoid

•Action: Flex neck & rotate head

•Origin: Manubrium of sternum & clavicle

•Insertion: Mastoid process of temporal bone, superior to nuchal line of occipital bone 

24

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Sternocleidomastoid

•Action: Flex neck & rotate head

•Origin: Manubrium of sternum & clavicle

•Insertion: Mastoid process of temporal bone, superior to nuchal line of occipital bone 

25

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Platysma

•Action: Depress mandible

•Origin: Fascia of chest

•Insertion: Lower margin of mandible, skin & muscle of the corner of the mouth 

26

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Platysma

•Action: Depress mandible

•Origin: Fascia of chest

•Insertion: Lower margin of mandible, skin & muscle of the corner of the mouth 

27

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Platysma

•Action: Depress mandible

•Origin: Fascia of chest

•Insertion: Lower margin of mandible, skin & muscle of the corner of the mouth 

28

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Latissimus dorsi

•Action: Arm extension, adduct & rotate arm

•Origin: Spinous process of T6-L5, iliac crest

•Insertion: Intertubercle sulcus of humerus

 

29

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Latissimus dorsi

•Action: Arm extension, adduct & rotate arm

•Origin: Spinous process of T6-L5, iliac crest

•Insertion: Intertubercle sulcus of humerus

30

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Latissimus dorsi

•Action: Arm extension, adduct & rotate arm

•Origin: Spinous process of T6-L5, iliac crest

•Insertion: Intertubercle sulcus of humerus

31

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Orbicularis oculi 

•Action: Close eye lids

•Origin: Frontal & maxillary bones

•Insertion: Skin of eyelid

32

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Orbicularis oculi 

•Action: Close eye lids

•Origin: Frontal & maxillary bones

•Insertion: Skin of eyelid

33

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Orbicularis oculi 

•Action: Close eye lids

•Origin: Frontal & maxillary bones

•Insertion: Skin of eyelid

34

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Risorius  

•Action: Draws corner of lip laterally

•Origin: Fascia of masseter

•Insertion: Skin at angle of mouth 

35

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Risorius  

•Action: Draws corner of lip laterally

•Origin: Fascia of masseter

•Insertion: Skin at angle of mouth 

36

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Risorius  

•Action: Draws corner of lip laterally

•Origin: Fascia of masseter

•Insertion: Skin at angle of mouth 

37

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Orbicularis oris

•Action: Closes lips

•Origin: Maxilla & mandible

•Insertion: Skin of mouth 

38

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Orbicularis oris

•Action: Closes lips

•Origin: Maxilla & mandible

•Insertion: Skin of mouth 

39

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Orbicularis oris

•Action: Closes lips

•Origin: Maxilla & mandible

•Insertion: Skin of mouth 

40

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Zygomaticus

•Action: Elevates corners of mouth

•Origin: Zygomatic bone

•Insertion: Skin & muscle at corners of mouth 

41

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Zygomaticus

•Action: Elevates corners of mouth

•Origin: Zygomatic bone

•Insertion: Skin & muscle at corners of mouth 

42

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Zygomaticus

•Action: Elevates corners of mouth

•Origin: Zygomatic bone

•Insertion: Skin & muscle at corners of mouth 

43

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Zygomaticus

•Action: Elevates corners of mouth

•Origin: Zygomatic bone

•Insertion: Skin & muscle at corners of mouth 

44

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Buccinator

•Action: Draws corn of lips laterally

•Origin: Molar region of mandible & maxillae

•Insertion: Orbicularis oris

45

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Buccinator

•Action: Draws corn of lips laterally

•Origin: Molar region of mandible & maxillae

•Insertion: Orbicularis oris

46

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Buccinator

•Action: Draws corn of lips laterally

•Origin: Molar region of mandible & maxillae

•Insertion: Orbicularis oris

47

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Depressor labii inferioris

•Action: Draws lower lip inferiorly

•Origin: Body of mandible

•Insertion: Skin & muscle at angle of lower lip 

48

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Depressor labii inferioris

•Action: Draws lower lip inferiorly

•Origin: Body of mandible

•Insertion: Skin & muscle at angle of lower lip 

49

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Depressor labii inferioris

•Action: Draws lower lip inferiorly

•Origin: Body of mandible

•Insertion: Skin & muscle at angle of lower lip 

50

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Depressor anguli oris

•Action: Draws corners of mouth down & lateral

•Origin: Mandible

•Insertion: Skin & muscle at angle of mouth 

51

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Depressor anguli oris

•Action: Draws corners of mouth down & lateral

•Origin: Mandible

•Insertion: Skin & muscle at angle of mouth 

52

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Depressor anguli oris

•Action: Draws corners of mouth down & lateral

•Origin: Mandible

•Insertion: Skin & muscle at angle of mouth 

53

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Mentalis

•Action: Protrudes lower lip

•Origin: Anterior mandible

•Insertion: Skin of chin 

54

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Mentalis

•Action: Protrudes lower lip

•Origin: Anterior mandible

•Insertion: Skin of chin 

55

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Mentalis

•Action: Protrudes lower lip

•Origin: Anterior mandible

•Insertion: Skin of chin 

56

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Masseter

•Action: Elevate mandible

•Origin: Zygomatic arch & maxilla

•Insertion: Angle & ramus of mandible 

 

57

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Masseter

•Action: Elevate mandible

•Origin: Zygomatic arch & maxilla

•Insertion: Angle & ramus of mandible 

58

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Masseter

•Action: Elevate mandible

•Origin: Zygomatic arch & maxilla

•Insertion: Angle & ramus of mandible 

59

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Masseter

•Action: Elevate mandible

•Origin: Zygomatic arch & maxilla

•Insertion: Angle & ramus of mandible 

60

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Temporalis

•Action: Elevate & retract mandible

•Origin: Temporal fossa

•Insertion: Coronoid process of mandible 

61

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Temporalis

•Action: Elevate & retract mandible

•Origin: Temporal fossa

•Insertion: Coronoid process of mandible 

62

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Temporalis

•Action: Elevate & retract mandible

•Origin: Temporal fossa

•Insertion: Coronoid process of mandible 

63

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Trapezius

•Action: Extend neck; raise, rotate, & adduct scapula

•Origin: Occipital bone & spinous of C7 & process of thoracic vertebrae

•Insertion:Acromion & spine of scapula, lateral third of clavicle  

64

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Trapezius

•Action: Extend neck; raise, rotate, & adduct scapula

•Origin: Occipital bone & spinous of C7 & process of thoracic vertebrae

•Insertion:Acromion & spine of scapula, lateral third of clavicle 

65

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Trapezius

•Action: Extend neck; raise, rotate, & adduct scapula

•Origin: Occipital bone & spinous of C7 & process of thoracic vertebrae

•Insertion:Acromion & spine of scapula, lateral third of clavicle

66

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Transversus abdominis

•Action: Compress abdominal contents

•Origin: Ribs 6-12 (cartilage), inguinal ligament, lumbar fascia

•Insertion: Pubic crest, linea alba 

67

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Transversus abdominis

•Action: Compress abdominal contents

•Origin: Ribs 6-12 (cartilage), inguinal ligament, lumbar fascia

•Insertion: Pubic crest, linea alba 

68

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Internal oblique 

•Action: Flex & rotate vertebral column, trunk rotation, & lateral flexion

•Origin Iliac crest, inguinal ligament, lumbar fascia

•Insertion: Ribs 9-12 (cartilage), linea alba, pubic crest  

69

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Transversus abdominis

•Action: Compress abdominal contents

•Origin: Ribs 6-12 (cartilage), inguinal ligament, lumbar fascia

•Insertion: Pubic crest, linea alba 

70

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Internal oblique 

•Action: Flex & rotate vertebral column, trunk rotation, & lateral flexion

•Origin Iliac crest, inguinal ligament, lumbar fascia

•Insertion: Ribs 9-12 (cartilage), linea alba, pubic crest  

71

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External oblique

•Action: Flex & rotate vertebral column, trunk rotation & lateral flexion

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

72

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External oblique

•Action: Flex & rotate vertebral column, trunk rotation & lateral flexion

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

73

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External oblique

•Action: Flex & rotate vertebral column, trunk rotation & lateral flexion

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

74

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External oblique

•Action: Flex & rotate vertebral column, trunk rotation & lateral flexion

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

75

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Rectus abdominis

•Action: Flex & rotate the vertebral column

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

76

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Rectus abdominis

•Action: Flex & rotate the vertebral column

•Origin: Pubic crest & symphysis

•Insertion: Xiphoid process & ribs 5-7 (cartilage) 

77

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Diaphragm

•Action: Prime mover of inspiration, flattens when contracts, lengthens thoracic cavity 

78

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Diaphragm

•Action: Prime mover of inspiration, flattens when contracts, lengthens thoracic cavity 

79

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Diaphragm

•Action: Prime mover of inspiration, flattens when contracts, lengthens thoracic cavity 

80

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Diaphragm

•Action: Prime mover of inspiration, flattens when contracts, lengthens thoracic cavity 

81

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Internal intercostal

•Action: Depress the ribcage, aid in inspiration

•Origin: Superior border of rib below

•Insertion: Inferior border of rib above 

82

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Internal intercostal

•Action: Depress the ribcage, aid in inspiration

•Origin: Superior border of rib below

•Insertion: Inferior border of rib above 

83

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Internal intercostal

•Action: Depress the ribcage, aid in inspiration

•Origin: Superior border of rib below

•Insertion: Inferior border of rib above 

84

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External intercostals

•Action: Elevate ribcage, aid in inspiration

•Origin: Inferior border of rib above

•Insertion: Superior border of rib below 

85

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External intercostals

•Action: Elevate ribcage, aid in inspiration

•Origin: Inferior border of rib above

•Insertion: Superior border of rib below 

86

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External intercostals

•Action: Elevate ribcage, aid in inspiration

•Origin: Inferior border of rib above

•Insertion: Superior border of rib below 

87

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External intercostals 

•Action: Elevate ribcage, aid in inspiration

•Origin: Inferior border of rib above

•Insertion: Superior border of rib below 

88

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Serratus Anterior

•Action: Move scapula forward, rotate scapula

•Origin: Ribs 1-8

•Insertion: Medial border of scapula 

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Serratus Anterior

•Action: Move scapula forward, rotate scapula

•Origin: Ribs 1-8

•Insertion: Medial border of scapula 

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Serratus Anterior

•Action: Move scapula forward, rotate scapula

•Origin: Ribs 1-8

•Insertion: Medial border of scapula 

91

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Serratus Anterior

•Action: Move scapula forward, rotate scapula

•Origin: Ribs 1-8

•Insertion: Medial border of scapula 

92

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Pectoralis Minor

•Action: Elevates upper ribs

•Origin: Ribs 3-5

•Insertion: Coracoid process

93

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Pectoralis Minor

•Action: Elevates upper ribs

•Origin: Ribs 3-5

•Insertion: Coracoid process

94

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Pectoralis Minor

•Action: Elevates upper ribs

•Origin: Ribs 3-5

•Insertion: Coracoid process

95

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Epicranius
Occipitalis

  • Action: Pulls scalp posteriorly

  • Origin: Occipital bone

  • Insertion: Aponeurosis

96

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Epicranius
Occipitalis

  • Action: Pulls scalp posteriorly
  • Origin: Occipital bone
  • Insertion: Aponeurosis

97

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 Epicranius Frontalis 
Frontalis (frontal body)

  • Action: Raises eyebrows

  • Origin: Aponeurosis

  • Insertion: Skin of eyebrows

98

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Epicranius Frontalis 
Frontalis (frontal body)

  • Action: Raises eyebrows
  • Origin: Aponeurosis
  • Insertion: Skin of eyebrows

99

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Erector Spinae;
Longissimus, iliocostalis, spinalis

  • •Action: As a pair: extend neck & vertebral column

  • Origin: Iliac crest & transverse process of C7-T12

  • Insertion: Occipital bone & spinous process of cervical vertebrae

100

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Erector Spinae;
Longissimus, iliocostalis, spinalis

  • Action: As a pair: extend neck & vertebral column
  • Origin: Iliac crest & transverse process of C7-T12
  • Insertion: Occipital bone & spinous process of cervical vertebrae

101

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Erector Spinae

Iliocostalis

  • Action: As a pair: extend neck & vertebral column
  • Origin: Iliac crest & transverse process of C7-T12
  • Insertion: Occipital bone & spinous process of cervical vertebrae

102

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Erector Spinae

Longissimus

  • Action: As a pair: extend neck & vertebral column
  • Origin: Iliac crest & transverse process of C7-T12
  • Insertion: Occipital bone & spinous process of cervical vertebrae

103

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Erector Spinae
Spinalis

  • Action: As a pair: extend neck & vertebral column
  • Origin: Iliac crest & transverse process of C7-T12
  • Insertion: Occipital bone & spinous process of cervical vertebrae