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Human Anatomy Lab (MOINA) > Muscles for Facial Expression > Flashcards

Muscles for Facial Expression Flashcards

(76 cards)

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1
Q

buccinator (origin)

A

maxilla and mandible (posterior alveolar process of both bones) and pterygomandibular raphe

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2
Q

buccinator (insertion)

A

modiolus (lateral to angle of mouth)

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3
Q

buccinator (nerve)

A

facial nerve (CN VII)

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4
Q

buccinator (action)

A

compresses cheeks

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5
Q

corrugator supercilii (origin)

A

frontal bone just above nose (lateral to glabella)

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6
Q

corrugator supercilii (insertion)

A

skin of medial portion of eyebrows

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7
Q

corrugator supercilii (nerve)

A

facial nerve (CN VII) - zygomatic branch

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8
Q

corrugator supercilii (action)

A

draws eyebrows downwards and medially (“thinker’s brow”)

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9
Q

depressor anguli oris (origin)

A

along oblique line of mandible; lateral aspect of mental tubercle of mandible

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10
Q

depressor anguli oris (insertion)

A

modiolus (near angle of mouth)

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11
Q

depressor anguli oris (nerve)

A

facial nerve (CN VII)

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12
Q

depressor anguli oris (action)

A

depresses angle of mouth (frown)

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13
Q

depressor labii inferioris (origin)

A

mandible (between symphysis and mental foramen)

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14
Q

depressor labii inferioris (insertion)

A

skin and fascia of lower lip

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15
Q

depressor labii inferioris (nerve)

A

facial nerve (CN VII)

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16
Q

depressor labii inferioris (action)

A

draws lower lip downwards and laterally; everts lower lip

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16
Q

depressor septi nasi (origin)

A

incisive fossa of maxilla

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17
Q

depressor septi nasi (insertion)

A

septum and alar cartilage of nose

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18
Q

depressor septi nasi (nerve)

A

facial nerve (CN VII)

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19
Q

depressor septi nasi (action)

A

constricts nostrils

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20
Q

frontalis (origin)

A

galea aponeurotica

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21
Q

frontalis (insertion)

A

skin and fascia above eyes and nose

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22
Q

frontalis (nerve)

A

temporal branch of facial nerve (CN VII)

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23
Q

frontalis (action)

A

draws scalp posteriorly to raise and wrinkle eyebrows (surprise)

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24
levator anguli oris (origin)
below infraorbital foramen of maxilla
25
levator anguli oris (insertion)
modiolus (near angle of mouth)
26
levator anguli oris (nerve)
facial nerve (CN VII)
27
levator anguli oris (action)
elevates angle of mouth (smiling)
28
levator labii superioris (origin)
medial inferior orbital margin of maxilla
28
levator labii superioris (insertion)
upper lip muscles
29
levator labii superioris (nerve)
facial nerve (CN VII)
30
levator labii superioris (action)
elevates and everts upper lip
31
levator labii superioris alaeque nasi (origin)
frontal process of maxilla
32
levator labii superioris alaeque nasi (insertion)
lateral slip: upper lip muscles medial slip: alar cartilage of nose
33
levator labii superioris alaeque nasi (nerve)
facial nerve (CN VII)
34
levator labii superioris alaeque nasi (action)
elevates and everts upper lip; flares nostrils
35
mentalis (origin)
incisive fossa of mandible
36
mentalis (insertion)
skin and fascia of chin
37
mentalis (nerve)
facial nerve (CN VII)
38
mentalis (action)
elevates and everts lower lip; wrinkles skin on chin
39
nasalis (origin)
transverse part: maxilla (lateral to nose) alar part: maxilla, superior to canine alveolar process
40
nasalis (insertion)
transverse part: opposite side nasalis over upper cartilage of nose alar part: alar cartilage of nose (nasal wing)
41
nasalis (nerve)
facial nerve (CN VII)
42
nasalis (action)
flares nostrils (particularly in forced respiration)
43
occipitalis (origin)
lateral 2/3 of superior nuchal line and external occipital protuberance
44
occipitalis (insertion)
galea aponeurotica
45
occipitalis (nerve)
posterior auricular branch of facial nerve (CN VII)
46
occipitalis (action)
draws scalp posteriorly to raise and wrinkle eyebrows (surprise)
47
orbicularis oculi (origin)
orbital portion: nasal process of frontal bone palpebral portion: palpebral ligament lacrimal portion: lacrimal crest of lacrimal bone
48
orbicularis oculi (insertion)
circumferentially around orbit meeting at origin
49
orbicularis oculi (nerve)
zygomatic branch of facial nerve (CN VII)
49
orbicularis oculi (action)
closes eye tightly, squinting of eye; depresses upper eyelid, elevates lower eyelid (palpebral part)
50
orbicularis oris (origin)
modiolus (just lateral to angle of mouth)
51
orbicularis oris (insertion)
circumferentially around mouth; blends with other muscles
52
orbicularis oris (nerve)
facial nerve (CN VII)
53
orbicularis oris (action)
closes mouth; protrudes lips (puckers lips)
54
platysma (origin)
subcutaneous fascia (over deltoid-pectoral region)
54
platysma (insertion)
body of mandible and subcutaneous fascia of lower face; angle of mouth
55
platysma (nerve)
cervical branch of facial nerve (CN VII)
56
platysma (action)
tenses skin over lower neck (creates ridge in skin); depresses mandible, lower lip, and angle of mouth
57
procerus (origin)
nasal bone and cartilages
58
procerus (insertion)
skin and fascia between eyebrows
59
procerus (nerve)
superior buccal branches of facial nerve (CN VII)
60
procerus (action)
draws medial eyebrows downwards (menacing expression); wrinkles skin over superior nose
61
risorius (origin)
parotid fascia (superficial to masseter)
62
risorius (insertion)
modiolus (near angle of mouth)
63
risorius (nerve)
facial nerve (CN VII)
64
risorius (action)
draws angle of mouth laterally (false smile)
65
zygomaticus major (origin)
zygomatic bone (anterior to zygomatic-temporal suture)
66
zygomaticus major (insertion)
modiolus (near angle of mouth)
67
zygomaticus major (nerve)
facial nerve (CN VII)
68
zygomaticus major (action)
elevates angle of mouth (smiling); pulls angle of mouth laterally
69
zygomaticus minor (origin)
zygomatic bone (posterior to zygomaticmaxillary suture)
69
zygomaticus minor (insertion)
skin, fascia, and muscles of upper lip
70
zygomaticus minor (nerve)
facial nerve (CN VII)
71
zygomaticus minor (action)
elevates upper lip (smiling); everts upper lip

Human Anatomy Lab (MOINA) (17 decks)

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