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115 Oral, Head And Neck Anatomy > Muscles of the Face > Flashcards

Muscles of the Face Flashcards

1
Q

What is the forehead region called?

A

Epicranius Occipitofrontalis

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2
Q

Characteristics of the muscles of facial expression

A
  • All paired muscles in the superficial fascia of the face
  • Origin/insertion bones to superficial fascia
  • Action: Various combinations vary appearance of face
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3
Q

Embryonic development of muscles of facial expression

A

Second brachial/ Pharyngeal Arch/ Hyoid Arch

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4
Q

Innervation of muscles of facial expression

A

Facial Nerve- VII cranial nerve

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5
Q

Action of Epicranius Occipitofrontalis

A

Surprise expression, raising eyebrows and scalp

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6
Q

Origin of epicranius occipitofrontalis

A

Frontal belly: epicranial aponeurosis (scalp tendon)

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7
Q

Insertion of Epicranius occipitofrontalis

A

Skin tissue of eyebrows and root of nose

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8
Q

Action of Orbicularis Occuli (eye region)

A

Palpebral- gently closes eyelid

Orbital- forcefully closes eyelid

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9
Q

Origin of orbicularis occuli

A

Orbital rim, nasal process of frontal bone & frontal process of maxillary bone

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10
Q

Insertion of orbicularis occuli

A

Skin tissue: lateral region of eye and some fibers encircle the eye

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11
Q

Action of Corrugator subercilii

A

Between eyebrows
Eyebrows pulled together and down
Frowning

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12
Q

Origin of corrugator supercilii

A

Frontal bone, supraorbital region

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13
Q

Insertion of corrugator supercilii

A

Superolateral into skin of eyebrow

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14
Q

Action of Orbicularis Oris (around mouth)

A

Closes the lips, pursing lips, pucker, kiss

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15
Q

Origin of orbicularis oris

A

encircle the mouth

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16
Q

Insertion of Orbicularis Oris

A

Angle of the mouth, upper lip into ridge of philtrum

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17
Q

Action of buccinator

A

Compresses cheek, pushes food on teeth during chewing

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18
Q

Origin of buccinator

A

Alveolar process of the maxilla, mandible and pterygomandibular fold (raphe)

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19
Q

Action of risorius

A

Retracts angle of mouth, grimace or wide smile

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20
Q

Origin of risorius

A

Fascia superficial to masseter muscle

21
Q

Insertion of risorius

A

Skin tissue at angle of mouth

22
Q

Action of levator labii superioris alaeque nasi

A

Elevates upper lip and dilates nostrils

23
Q

Origin of levator labii superioris alaeque nasi

A

Frontal process of maxilla

24
Q

Insertion of levator labii superioris alaeque nasi

A

Skin tissue of nasal alae and upper lip

25
Q

Action of levator labii superioris

A

Elevates upper lip

26
Q

Origin of levator labii superioris

A

Infraorbital rim of maxilla

27
Q

Insertion of levator labii superioris

A

Skin tissue of upper lip

28
Q

Acton of zygomaticus minor

A

Raising upper lip

29
Q

Origin of zygomaticus minor

A

zygomatic bone

30
Q

Insertion of zygomaticus minor

A

skin tissue of upper lip

31
Q

Action of levator anguli oris

A

Elevates angle of mouth

Smiling

32
Q

Origin of levator anguli oris

A

canine fossa of maxilla

33
Q

Insertion of levator anguli oris

A

Skin at angle of the mouth

34
Q

Action fo zygomaticus major

A

Elevates angle of upper lip

smiling

35
Q

Origin of zygomaticus major

A

Zygomatic bone

36
Q

Insertion of zygomaticus major

A

skin tissue at angle of the mouth

37
Q

Action of depressor labii inferioris

A

Draws lower lip down, exposes lower incisors

38
Q

Origin of depressor labii inferioris

A

Lower border of mandible

39
Q

Insertion of depressor labii inferioris

A

Skin tissue of lower lip

40
Q

Action of depressor anguli oris

A

Depresses angle of mouth

Frowning

41
Q

Origin of depressor anguli oris

A

Lower border of mandible

42
Q

Insertion of depressor anguli oris

A

skin tissue at angle of mouth

43
Q

Action of the mentalis

A

Raises skin of chin, protrudes lower lip

44
Q

Origin of mentalis

A

Mandible near midline

45
Q

Insertion of mentalis

A

skin tissue of chin

46
Q

Action of platysma

A

Raises skin of the neck, pulls corners of mouth down, grimace

47
Q

Origin of platysma

A

skin tissue superficial to clavicle and shoulder

48
Q

Insertion of platysma

A

lower border of mandible and muscles surrounding the mouth

115 Oral, Head And Neck Anatomy (25 decks)

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