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Head and neck > OINAS > Flashcards

OINAS Flashcards

1
Q

Orbicularis oris (Extrinsic fibers) origin

A

from insertions of circumoral muscles

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2
Q

Orbicularis oris (Extrinsic fibers) insertion

A

Extrinsic fibers pass around mouth within the lips as a sphincter

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3
Q

Orbicularis oris (Extrinsic fibers) action

A

Compresses lips against anterior teeth, closes mouth, protrudes lips

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4
Q

Orbicularis oris (Extrinsic fibers)nerve

A

VII—zygomatic, buccal, and mandibular branches

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5
Q

Orbicularis oris (Intrinsic fibers) origin

A

from incisive fossae of mandible and maxilla

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6
Q

Orbicularis oris (Intrinsic fibers) insertion

A

Intrinsic fibers pass obliquely forward and insert into the skin of the lip

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7
Q

Orbicularis oris (Intrinsic fibers)action

A

Compresses lips against anterior teeth, closes mouth, protrudes lips

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8
Q

Orbicularis oris (Intrinsic fibers) nerve

A

VII—zygomatic, buccal, and mandibular branches

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9
Q

Depressor anguli oris origin

A

Oblique line of mandible

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10
Q

Depressor anguli oris insertion

A

Angle of mouth

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11
Q

Depressor anguli oris action

A

Depresses angle of mouth

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12
Q

Depressor anguli oris nerve

A

VII—buccal and mandibular branches

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13
Q

Levator anguli oris origin

A

Canine fossa of maxilla, below infraorbital foramen

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14
Q

Levator anguli oris insertion

A

Angle of mouth

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15
Q

Levator anguli oris action

A

Elevates angle of mouth

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16
Q

Levator anguli oris nerve

A

VII—zygomatic and buccal branches

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17
Q

Zygomaticus major origin

A

Zygomatic bone

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18
Q

Zygomaticus major insertion

A

Angle of mouth

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19
Q

Zygomaticus major action

A

Draws angle of mouth up and back

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20
Q

Zygomaticus major nerve

A

VII—zygomatic and buccal branches

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21
Q

Risorius origin

A

Contributions of platysma fibers, fascia of parotid and masseteric regions

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22
Q

Risorius insertion

A

Angle of mouth

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23
Q

Risorius action

A

Draws angle of mouth laterally

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24
Q

Risorius nerve

A

VII—zygomatic and buccal branches

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25
Levator labii superioris( Angular head ) origin
frontal process of maxilla
26
Levator labii superioris( Angular head ) insertion
Alar cartilage and skin of nose
27
Levator labii superioris( Angular head )action
Elevates upper lip, flares nostril
28
Levator labii superioris( Angular head ) nerve
VII—zygomatic and buccal branches
29
Levator labii superioris( Infraorbital head) origin
inferior margin of orbit
30
Levator labii superioris( Infraorbital head)insertion
Upper Lip
31
Levator labii superioris( Infraorbital head)action
NO
32
Levator labii superioris( Infraorbital head)nerve
NO
33
Levator labii superioris( Zygomatic head ) origin
zygomatic bone
34
Levator labii superioris( Zygomatic head ) insetion
Nasolabial groove and upper lip
35
Levator labii superioris( Zygomatic head )action
NO
36
Levator labii superioris( Zygomatic head ) nerve
NO
37
Depressor labii inferioris origin
Oblique line of mandible
38
Depressor labii inferioris insertion
Lower lip
39
Depressor labii inferioris A
Depresses lower lip
40
Depressor labii inferioris N
VII—mandibular branches
41
Buccinator O
Pterygomandibular raphé, buccal alveolar processes of maxilla and mandible
42
Buccinator I
Upper fibers cross to insert into lower lip; lower fibers cross to insert into upper lip
43
Buccinator A
Compresses cheeks against molar teeth; sucking and blowing
44
Buccinator N
VII—buccal branches
45
Mentalis O
Incisive fossa mandible
46
Mentalis I
Skin of chin
47
Mentalis A
Puckers skin of chin, protrudes lower lip
48
Mentalis N
VII—mandibular branches
49
Nasalis (Compressor nares) O
canine eminence of maxilla
50
Nasalis (Compressor nares) I
Midline aponeurosis overlying lateral nasal cartilages
51
Nasalis (Compressor nares) A
Compresses nostrils
52
Nasalis (Compressor nares) N
VII—zygomatic and buccal branche
53
Orbicularis oculi (orbital) O
bone of upper medial orbital margin
54
Orbicularis oculi (orbital) I
Fibers encircle margins of orbit and insert into medial palpebral ligament
55
Orbicularis oculi (orbital) A
Closes eye forcefully
56
Orbicularis oculi (orbital) N
VII—temporal and zygomatic branches
57
Orbicularis oculi (Palpebral)
medial palpebral ligament
58
Orbicularis oculi (Palpebral) O
Fibers arch laterally through lids and interdigitate laterally in a raphé
59
Orbicularis oculi (Palpebral) I
Closes eye gently
60
Orbicularis oculi (Palpebral)
NO
61
Orbicularis oculi (Lacrimal) O
lacrimal bone behind lacrimal sac
62
Orbicularis oculi (Lacrimal) I
Medial aspect of lids
63
Orbicularis oculi (Lacrimal) A
(c) Squeezes lubricating tears against eyeball
64
Orbicularis oculi (Lacrimal)
NO
65
Procerus O
Nasal bone and lateral nasal cartilage
66
Procerus I
Skin of glabella
67
Procerus A
Transverse wrinkling of bridge of nose
68
Procerus N
VII—temporal and zygomatic branches
69
Corrugator O
Medial aspect of supraorbital margin
70
Corrugator I
Skin underlying eyebrow
71
Corrugator A
Vertical wrinkling of bridge of nose
72
Corrugator N
VII—temporal branches
73
Frontalis O
Aponeurosis of scalp
74
Frontalis I
Skin of forehead
75
Frontalis A
Pulls scalp up and back
76
Frontalis N
VII—temporal branches
77
Occipitalis O
Lateral two thirds of superior nuchal line, mastoid process
78
Occipitalis I
Skin of occipital area
79
Occipitalis A
Pulls scalp backward and forward along with occipitalis
80
Occipitalis N
VII—posterior auricular branches
81
Anterior auricular O
Aponeurosis of scalp, temporal fascia
82
Anterior auricular I
Anterior medial aspect of helix of auricle
83
Anterior auricular A
Pulls ear forward
84
Anterior auricular N
VII—temporal branches
85
Posterior auricular O
Superior lateral aspect of mastoid process
86
Posterior auricular I
Inferior medial aspect of auricle
87
Posterior auricular A
Pulls ear backward
88
Posterior auricular N
VII—temporal branches
89
Superior auricular O
Aponeurosis of scalp, temporal fascia
90
Superior auricular I
Superior medial aspect of auricle
91
Superior auricular A
Pulls ear superiorly
92
Superior auricular N
VII—posterior auricular branches (

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