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Regional Anatomy > Muscles of facial expression > Flashcards

Muscles of facial expression Flashcards

1
Q

what bone is your cheek bone

A

zygoma

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2
Q

what bone is above your teeth

A

maxilla

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3
Q

what bone is your chin

A

mandible

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4
Q

what bone is your forehead

A

frontal

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5
Q

name the bones of the scalp from front to back

A

frontal
parietal
occipital

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6
Q

the mastoid and styloid processes are from what bone

A

temporal bone

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7
Q

what bone is infront of the temporal bone

A

sphenoid bone

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8
Q

what part of the temporal bone houses the structures of the ear

A

petrous part of the temporal bone

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9
Q

most muscles of facial expression originate and insert where

A

originate on facial bones and insert into the skin/connective tissue of face

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10
Q

how do muscles of facial expression vary between individuals

A

shape of the muscles varies so the origin and insertion points are approximations of where the muscles are usually found

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11
Q

fascia of the scalp blends with what

A

superficial fascia in the neck posteriorly and temporal regions laterally

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12
Q

the fascia of what is thicker and is an extension of a layer of deep fascia

A

fascia of the parotid gland

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13
Q

a layer of deep cervical fascia (parotid fascia) covers what muscle and invests what

A

covers masseter and invests the parotid gland

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14
Q

what muscle lies on the forehead and scalp

A

occipitofrontalis

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15
Q

what are the 2 bellies of occipitofrontalis

A

occipitalis
frontalis

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16
Q

what action does occipitofronatlis do

A

raise and lower eyebrows

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17
Q

what is the small muscle of facial expression called that moves eyebrows inferomedially (vertical wrinkles in forehead)

A

corrigator supercili

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18
Q

what muscle covers the neck and is said to contribute to facial expression as well as tightening skin on neck

A

platysma

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19
Q

platysma is said to be a remnant of what

A

panniculus carnosis muscle layer found in other animals

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20
Q

what is the innervation of platysma

A

facial nerve

21
Q

what muscle depresses medial end of eyebrow / wrinkles skin over dorsum of nose to convey distain/dislike

A

procerus + transverse part of nasalis

22
Q

what muscles make the expression of the snapchat of catherine

A

platysma

23
Q

what muscle allows you to blow out cheeks

A

buccinator

24
Q

what is the actual function of buccinator

A

prevent food from collecting between teeth and cheeks

25
Q

what muscle allows flaring of nostrils

A

levator labii sup. alaeque nasi + alar part of nasalis

26
Q

what muscle acts to close the eyes

A

orbicularis oculi

27
Q

what muscle forms a circle around the lips

A

orbicularis oris

28
Q

what muscles raise the corners of the mouth and can be used to create a sneering expression

A

zygomaticus major and minor

29
Q

what muscle acts to elevate the lip

A

levator labii superioris

30
Q

what muscle acts to raise the corner of the mouth

A

levator anguli superioris

31
Q

what muscles perform the opposite function to the levator muscles

A

depressor anguli oris and depressor labii inferioris

32
Q

what is the small muscle that helps to pull down the lower lip

A

mentalis

33
Q

what are the dilators of the mouth

A

risorius plus levator labi superioris + depressor labii inferioris

34
Q

what causes a frown

A

depressor anguli oris

35
Q

what causes a pouty frown

A

mentalis

36
Q

what muscle arises from the fascia over the parotid gland and attaches to the corner of the mouth

A

risorius

37
Q

what muscle is used to make a smiling expression

A

risorius

38
Q

what is a small muscle that helps to move the skin of the nasal area

A

levator labii superioris alaeque nasi

39
Q

what muscles cause the underturned top lip smile

A

risorius and depressor labi inferioris

40
Q

what gives motor supply to the face

A

facial nerve

41
Q

what gives sensory to the face

A

trigeminal nerve

42
Q

what gives motor to temporalis and masseter

A

trigeminal nerve

43
Q

what are the motor branches of the facial nerve

A

temporal
zygomatic
buccal
mandibular
cervical
posterior auricular

44
Q

the temporal branch of the facial nerve supplies what

A

frontalis
orbicularis oculi

45
Q

the posterior auricular branch of the facial nerve supplies what

A

occipitalis

46
Q

the cervical branch of the facial nerve supplies what

A

platysma

47
Q

the zygomatic branch of the facial nerve supplies what

A

orbicularis oculi

48
Q

the buccal branch of the facial nerve supplies what

A

zygomaticus major and minor
levator labii superioris
levator anguli oris
buccinator
orbicularis oris
nasalis

49
Q

the marginal mandibular branch of the facial nerve supplies what

A

depressor anguli oris
depressor labii oris
mentalis

Regional Anatomy (36 decks)

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