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Anatomy > MOINA of Facial expressions and mastication > Flashcards

MOINA of Facial expressions and mastication Flashcards

(96 cards)

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1
Q

origin of levator palpebrae superioris

A

lesser wing of sphenoid bone (anterior surface)

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2
Q

insertion of levator palpebrae superioris

A

upper eyelid (fascia & skin)

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3
Q

nerve of levator palpebrae superioris

A

oculomotor nerve (CN III)

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4
Q

action of levator palpebrae superioris

A

elevates upper eyelid

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5
Q

origin of buccinator

A

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

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6
Q

insertion of buccinator

A

modiolus (just lateral to the angle of the mouth)

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7
Q

nerve of buccinator

A

facial nerve (CN VII)

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8
Q

action of buccinator

A

compresses cheek(s)

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9
Q

origin of corrugator supercilli

A

frontal bone just above nose (lateral to glabella)

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10
Q

insertion of corrugator supercilli

A

skin of medial portion of eyebrows

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11
Q

nerve of corrugator supercilli

A

facial nerve (CN VII) (zygomatic branch)

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12
Q

action of corrugator supercilli

A

draws eyebrows downward & medially (“thinker’s brow”)

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13
Q

origin of depressor anguli oris

A

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

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14
Q

insertion of depressor anguli oris

A

modiolus (near angle of mouth)

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15
Q

nerve of depressor anguli oris

A

facial nerve (CN VII)

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16
Q

action of depressor anguli oris

A

depresses angle(s) of mouth (frown)

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17
Q

origin of depressor labii inferioris

A

mandible (between symphysis & mental foramen)

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18
Q

insertion of depressor labii inferioris

A

skin & fascia of lower lip

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19
Q

nerve of depressor labii inferioris

A

facial nerve (CN VII)

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20
Q

action of depressor labii inferioris

A

draws lower lip downward & laterally; everts lower lip

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21
Q

origin of depressor septi nasi

A

incisive fossa of maxilla

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22
Q

insertion of depressor septi nasi

A

septum & alar cartilage of nose

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23
Q

nerve of depressor septi nasi

A

facial nerve (CN VII)

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24
Q

action of depressor septi nasi

A

constricts nostrils

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25
origin of frontalis
galea aponeurotica
26
insertion of frontalis
skin & fascia above nose & eyes
27
nerve of frontalis
facial nerve (CN VII), temporal branch of
28
action of frontalis
draws scalp posteriorly to raise eyebrows & wrinkle brow (surprise)
29
origin of levator anguli oris
below infraorbital foramen of maxilla
30
insertion of levator anguli oris
modiolus (near angle of mouth)
31
nerve of levator anguli oris
facial nerve (CN VII)
32
action of levator anguli oris
elevates angle(s) of mouth (smiling)
33
origin of levator labii superioris
medial inferior orbital margin of maxilla
34
insertion of levator labii superioris
upper lip muscles
35
nerve of levator labii superioris
facial nerve (CN VII)
36
action of levator labii superioris
elevates upper lip; everts upper lip
37
origin of levator labii superioris alaeque nasi
frontal process of maxilla
38
insertion of levator labii superioris alaeque nasi
lateral slip: upper lip muscles; medial slip: alar cartilage of nose
39
nerve of levator labii superioris alaeque nasi
facial nerve (CN VII)
40
action of levator labii superioris alaeque nasi
elevates upper lip; flares nostrils; everts upper lip
41
origin of mentalis
incisive fossa of mandible
42
insertion of mentalis
skin & fascia of chin
43
nerve of mentalis
facial nerve (CN VII)
44
action of mentalis
elevation of lower lip; everts lower lip; wrinkles skin of chin
45
origin of nasalis
transverse part: maxilla (lateral to nose); alar part: maxilla, superior to canine alveolar process
46
insertion of nasalis
transverse part: opposite side nasalis over upper cartilage of nose; alar part: alar cartilage of nose (nasal wing)
47
nerve of nasalis
facial nerve (CN VII)
48
action of nasalis
flares nostrils (particularly in forced respiration)
49
origin of occipitalis
lateral 2/3 of superior nuchal line & EOP
50
insertion of occipitalis
galea aponeurotica
51
nerve of occipitalis
facial nerve (CN VII), posterior auricular branch
52
action of occipitalis
draws back scalp to raise eyebrows & wrinkle brow (surprise)
53
origin of orbicularis oculi
orbital portion: nasal process of frontal bone; palpebral portion: palpebral ligament; lacrimal portion: lacrimal crest of lacrimal bone
54
insertion of orbicularis oculi
circumferentially around orbit meeting at the origin
55
nerve of orbicularis oculi
facial nerve (CN VII) (zygomatic branch)
56
action of orbicularis oculi
closes eye tightly, squinting of the eye; depresses upper eye lid, elevates lower eyelid (palpebral part)
57
origin of orbicularis oris
modiolus (just lateral to angle of mouth)
58
insertion of orbicularis oris
circumferentially around mouth; blends with other muscles
59
nerve of orbicularis oris
facial nerve (CN VII)
60
action of orbicularis oris
closes mouth; protrudes lips (puckering of lips)
61
origin of platysma
subcutaneous fascia (over deltoid-pectoral region)
62
insertion of platysma
mandible & subcutaneous fascia of lower face
63
nerve of platysma
facial nerve (CN VII)
64
action of platysma
tenses skin over lower neck (creates ridge in skin); depress mandible & lower lip
65
origin of procerus
nasal bone & cartilages
66
insertion of procerus
skin & fascia between eyebrows
67
nerve of procerus
facial nerve (CN VII) (superior buccal branches)
68
action of procerus
draws medial eyebrow downward (menacing expression); wrinkles skin of superior nose
69
origin of risorius
parotid fascia (superficial to masseter)
70
insertion of risorius
modiolus (near angle of mouth)
71
nerve of risorius
facial nerve (CN VII)
72
action of risorius
draws angle of mouth laterally (false smile)
73
origin of zygomaticus major
zygomatic bone (anterior to zygomatic-temporal suture)
74
insertion of zygomaticus major
modiolus (near angle of mouth)
75
nerve of zygomaticus major
facial nerve (CN VII)
76
action of zygomaticus major
elevates angle of mouth (smiling); pulls angle of mouth laterally
77
origin of zygomaticus minor
zygomatic bone (posterior to zygomaticmaxillary suture)
78
insertion of zygomaticus minor
skin, fascia & muscles of upper lip
79
nerve of zygomaticus minor
facial nerve (CN VII)
80
action of zygomaticus minor
elevates upper lip (smile); everts upper lip
81
origin of masseter
Zygomatic Arch of Temporalis
82
insertion of masseter
Angle of Mandible
83
nerve of masseter
Trigeminal N. (V3), Mandibular Branch
84
action of masseter
Closes (elevates) the jaw
85
origin of medial/internal pterygoid
Medial surface of Lateral Pterygoid Plate
86
insertion of medial/internal pterygoid
Medial aspect of the angle of the mandible
87
nerve of medial/internal pterygoid
Trigeminal N. (V3), Mandibular Branch
88
action of medial/internal pterygoid
Closes (elevates) the jaw
89
origin of temporalis
Temporal Fossa of Temporalis and Sphenoid
90
insertion of temporalis
Coronoid Process of Mandible
91
nerve of temporalis
Trigeminal N. (V3), Mandibular Branch
92
action of temporalis
Anterior Fibers: closes (elevates) jaw; Middle + Posterior fibers: Retract mandible (open jaw)
93
origin of lateral/external pterygoid
Superior Head: Greater wing of Sphenoid; Inferior Head: Lateral Pterygoid Plate
94
insertion of lateral/external pterygoid
Joint capsule of Condylar Process
95
nerve of lateral/external pterygoid
Trigeminal N. (V3), Mandibular Branch
96
action of lateral/external pterygoid
Protrusion of the jaw. The only muscle of the masticators to protrude the jaw

Anatomy (7 decks)

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