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Human Anatomy > Axial Myology (O,IA, ONLY) > Flashcards

Axial Myology (O,IA, ONLY) Flashcards

1
Q

What is the Origin of the Epicranius Muscle

A

Epicranial Aponeurosis

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2
Q

What are the 3 Insertions of the Epicranius Muscle

A

1) Occipital belly- Occipital bone
2) Frontal Belly- Skin of eyebrow and nose;
3) Lateral bellies- Muscles and cartilage of the auricle

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3
Q

What is the action of the Epicranius Muscle

A

Move the scalp (wrinkle brow, “wiggle” ears, etc.)

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4
Q

What is the Origin of the Orbicularis Oculi Muscle

A

NONE

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5
Q

What is the insertion of the Orpicularis oculi Muslce

A

None

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6
Q

What is the Action of the Orbicularis Oculi Muscle

A

Close eyelids

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7
Q

What are the 2 Origins of the Corrugator Supercilii Muscle

A

Orbicularis Oculi Muscle

Nasal prominence of frontal bone

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8
Q

What is the insertion of the Corrugator Supercilii Muscle

A

Skin of eyebrow

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9
Q

What is the Action of the Corrugator Supercilii Muscle

A

Draw eyebrow downward and medially; the “frown” muscle

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10
Q

What is the Origin of the Orbicularis Oris Muscle

A

NONE

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11
Q

What is the Insertion of the Orbicularis Oris Muscle

A

None

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12
Q

What is the action of the Orbicularis Oris Muscle?

A

Close and purse the lips

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13
Q

What are the 2 Origins to the Levator Labii Superioris Muscle

A

Maxilla

Zygomatic bone

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14
Q

What is the Insertion of the Levator Labii Superioris Muscle

A

Into the Orbicularis Oris Muscle of upper lip

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15
Q

What is the action of the Levator Labii Superioris Muscle

A

Elevate upper lip

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16
Q

What is the Origin of the Levator anguli Oris Muscle

A

Maxilla (canine fossa)

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17
Q

What are the 2 insertion of the Levator anguli oris Muscle

A

Orbicularis Oris Muscle

Skin at corner of mouth

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18
Q

What is the Action of the Levator anguli Oris Muscle

A

Raises angle of mouth

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19
Q

What is the Origin of the Zygomaticus Major Muscle

A

Zygomatic bone (near temporal process)

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20
Q

What is the insertion of the Zygomaticus Major Muscle

A

Orbicularis oris muscle at angle (corner) of mouth

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21
Q

What is the Action to the Zygomaticus Major Muscle

A

Draw upper lip back and upward

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22
Q

What is the Origin of the Zygomaticus Minor Muscle

A

Zygomatic bone (near zygomaticomaxillary suture).

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23
Q

What is the Insertion of the Zygomaticus Minor Muscle

A

Orbicularis oris and Levator labii superioris muscles

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24
Q

What is the action of the Zygomaticus Minor Muscle

A

Draw upper lip up and laterally

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25
Q

What is the Origin to the Depressor labii inferioris Muscle

A

Anterior aspect of mandible (between mandibular symphysis and mental foramen).;

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26
Q

What is the Insertion of the Depressor Labii Inverioris Muscle

A

Into the Orbicularis oris muscle (and skin) of lower lip

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27
Q

What is the action of the Depressor Labii inferioris Muscle

A

Depress lower lip

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28
Q

What is the Origin to the Depressor Anguli Oris Muscle

A

Anterior Aspect of Mandible

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29
Q

What is the Insertion of the Depressor anguli Oris Muscle

A

Into the orbicularis oris Muscle near corner of mouth

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30
Q

What is the action of the Depressor anguli Oris Muscle

A

Depress corner of mouth

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31
Q

What is the Origin to the Nasalis Muscle

A

Maxilla

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32
Q

What are the 2 insertions to the Nasalis Muscle

A

Into the Contralateral Muscle (over the bridge of nose)

* into ala of nose

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33
Q

What is the action of the Nasalis Muscle

A

Wrinkle nose and dilate nostrils

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34
Q

What is the Origin of the Temporalis Muscle

A

Temporal fossa of the Skull

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35
Q

What is the Insertion of the Temporalis Muscle

A

Coronoid process (and adjacent ramus) of mandible

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36
Q

What is the action of the Temporalis Muscle

A

Elevate mandible (clench teeth)

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37
Q

What is the Origin of the Masseter Muscle

A

Zygomatic arch of the skull

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38
Q

What is the Insertion of the Masseter muscle

A

Coronoid process and lateral aspect of the of ramus of mandible

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39
Q

What is the action of the Masseter Muscle

A

Elevate Mandible (clench teeth)

40
Q

What is the Origin of the Lateral Pterygoid Muscle

A

Lateral wall of pterygoid process and adjacent greater wing of sphenoid bond

41
Q

What is the Insertion of the Lateral Pterygoid Muscle

A

Condyloid process of mandible and articular disc of temporomandibular joint

42
Q

What are the 2 actions of the Lateral Pterygoid Muscle

A 
Protract mandible
Depress mandible (weekly)
43
Q

What are the 3 Origins of the Medial Pterygoid Muscle

A

Between the medial and lateral walls of the pterygoid process of the sphenoid bone

  • Palatine bone
  • Maxilla
44
Q

What is the Insertion of the Medial pterygoid Muscle

A

Medial aspect of the mandible (near the angle)

45
Q

What is the 2 actions of the Medial Pterygoid Muscle

A

Elevate Mandible

Move mandible laterally

46
Q

What is the Origin to the Platysma

A

fascia over pectoralis Major Muscle and the Deltoidus Muscle

47
Q

What is the Insertion to the Platysma

A

Lower mandibular region

48
Q

What art the 2 actions of the Platysma

A

Depresses lower lip

Wrinkle skin of neck and upper chest (yelling & screaming)

49
Q

What is the 2 Origins to the Sternocleidomastoideus Muscle

A

Manubrium of the sternum

Sternal extremity of the clavicle

50
Q

What is the Insertion to the Sternocleidomastoideus Muscle

A

Mastoid process of temporal bone

51
Q

What are the 2 actions to the Sternocleidomastoideus Muscle

A

Turn head toward opposite side;

Flex joints of cervical vertebral column

52
Q

What are the 4 Origins to the Pectoralis Major Muscle

A

Clavicle
Sternum
first six ribs
Aponeurosis of external abdominal oblique muscle

53
Q

What is the Insertion to the Pectoralis Major Muscle

A

Crest of greater tubercle of humerus and directly inferior to the greater tubercle of humerus

54
Q

What are the 3 actions to the Pectoralis Major Muscle

A

Flex the shoulder joint
Adduct the Superior limb at the Shoulder Joint
Medially Rotate the superior limb at the shoulder joint

55
Q

What is the Origin to the Pecoralis Minor Muscle

A

Ribs 3-5/6 near costochondral joints

56
Q

What is the insertion of the Pectoralis Minor Muscle

A

Coracoid process of scapula

57
Q

What is the 2 actions of the Pectoralis Minor Muscle

A

Draw scapula anterior and down

Elevate ribs

58
Q

What is the Origin of the Serratus Anterior Muscle

A

Center of lateral aspects of first eight or nine ribs

59
Q

What is the Insertion of the Serratus Anterior Muscle

A

Medial border of scapula

60
Q

What are the 2 actions of the Serratus anterior Muscle

A

Rotate scapula and pull it forward,

Elevate ribs

61
Q

What is the Origin to the External Intercostal Muscles

A

Inferior Borders of ribs

62
Q

What is the Insertion of the External intercostal Muscles

A

Superior boarders of ribs

63
Q

What are the 2 actions of the External intercostal Muscles

A

Elevate ribs

Maintain tension in the intercostal spaces

64
Q

What is the Origin to the Internal intercostal Muscles

A

Inferior borders of ribs

65
Q

What is the Inertions of the Internal intercostal Muscles

A

Superior borders of ribs

66
Q

What are the 2 actions of the External Intercostal Muscles

A

Depress the ribs

Maintain tension in the intercostal spaces

67
Q

What is the origin of the Rectus abdominis Muscle

A

Crest and symphysis of pubis

68
Q

What are the 2 insertions of the Rectus abdominis Muscle

A

Xiphoid process of the sternum

Costal cartilages 5,6,7

69
Q

What are the 2 actions of the Rectus Abdominis Muscle

A

Draw thorax downward (flex joints of vertebral column),

*Compress abdomen

70
Q

What is the Origin of the External abdominal oblique Muscles

A

Ribs 5-12

71
Q

What are the 3 Insertions of the External abdominal oblique Muscle

A

Anterior Lamina of the sheath of the rectus abdominis Muscle

  • Anterior half of iliac crest
  • Inguinal Ligament
72
Q

What are the 3 actions of the External abdominal oblique muscle

A

Draw the thorax downward (flex joints of vertebral column,)

  • Compress abdomen
  • Rotate vertebral column if contracted unilaterally
73
Q

What are the 4 Origins of the Internal abdominal oblique Muscle

A

Anterior Half of crest of ilium
Lumbar fascia
Iliac fascia
Inguinal ligament

74
Q

What are the 2 insertions of the Internal abdominal oblique Muscle

A

Ribs 10-12

Sheath of rectus abdominis Muscle

75
Q

What are the 3 actions of the Internal abdominal oblique Muscle

A

Draw thorax downward (flex joints of vertebral column)

  • compress abdomen,
  • rotate vertebral column
76
Q

What are the 4 origins to the Transversus abdominis Muscle

A

Costal cartilages of rib 7-12
Lumbar fascia
Iliac crest
Inguinal ligament

77
Q

What are the 2 Insertions of the Transversus Abdominis Muscle

A

Xiphoid process of sternum

Posterior lamina of sheath of rectus abdominis Musce

78
Q

What is the action of the Transversus Abdominis Muscle

A

Compress abdomen

79
Q

What are the 3 Origins of the Trapezius Muscle

A

Occipital bone
Nuchal ligament
Spinous processes of C7 and thoracic vertebrae

80
Q

What are the 3 insertions of the Trapezius Muscle

A

Clavicle
Spine of the scapula
Acromion of scapula

81
Q

What are the 2 Actions of the Trapezius Muscle

A

Draw head laterally or posteriorly,

Rotate scapula

82
Q

What are the 3 Origins of the Latissimus Dorsi Muscle

A

Spinous processes of lower 5 or 6 thoracic vertebraed
Spinous processes of the lumbar vertebrae
Median sacral crest

83
Q

What is the Insertion of the Latissimus Dorsi Muscle

A

With teres major muscle into the medial border of the intertubercular groove of the humerus

84
Q

What are the 3 Actions of the Latissimus dorsi Muscle

A

Adduct superior limb at the shoulder joint
Rotate limb medially at shoulder joint
Extend shoulder joint

85
Q

What is the origin of the Rhomboideus Major Muscle

A

Spinous processes of thoracic vertebrae 2-5

86
Q

What is the Insertion of the Rhomboideus Major Muscle

A

Medial border of scapula below level of its spine

87
Q

What is the Action of the Rhomoboideus Major Muscle

A

Pull (retract) scapula toward vertebral column

88
Q

What is the origin of the Rhomboideus Minor Muscle

A

Spinous processes of C7 and T1

89
Q

What is the Insertion of the Rhomboideus Minor Muscle

A

Medial border of scapula at the level of its spine

90
Q

What is the action of the Rhomboidus Minor muscle

A

Pull scapula toward vertebral column and slightly superiorly

91
Q

What is the origin of the Levator Scapulae Muscle

A

Transverse processes of first four cervical vertebrae

92
Q

What is the insertion of the Levator scapulae Muscle

A

Superior angle of the scapula

93
Q

What is the action of the levator scapulae muscle

A

Elevate scapula

94
Q

What 3 muscle make up the Erector spinae Muscles

A

Spinalis Muscle
Longissimus Muscle
Iliocostalis Muscle

95
Q

What is the Origin of the erector spinae Muscles

A

NONE

96
Q

What is the Insertions of the erector spinae muscles

A

Attachments transverse processes of vertebrae, ribs, and ilium

97
Q

What is the actions of the Erector spinae Muscles

A

Extend joints of vertebral column

Bend trunk loaterally

Human Anatomy (14 decks)

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