Muscles Of Facial Expression

Front 1

What is the 3 primary muscles of facial expression of the scalp?

Back 1

1. frontalis
2. occipitalis
3. temporoparietalis

Front 2

What 2 scalp muscles together make up the epicranius or occipitofrontalis muscle with a galea aponeurotica (CT sheet of collagen) in between?

Back 2

frontalis and occipitalis

Front 3

Frontalis location?
O: (3)
I: (1)
Branch of CN VII?
Function?

Back 3

forehead
O: procerus, corrugator, orbicularis oculi
I: galea aponeurotica
Temporal branch
Wrinkles forehead and raises eyebrows

Front 4

Occipitalis location?
O: (2)
I: (1)
Branch of CN VII?
Function?

Back 4

back of head
O: mastoid process, superior nuchal line
I: galea aponeurotica
Posterior auricular branch
Tightens scalp

Front 5

Temporoparietalis location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 5

temple
O: temporal fascia
I: galea aponeurotica
Temporal branch
Elevates the ear

Front 6

What are the 3 primary muscles of facial expression in the ear?

Back 6

1. auricularis anterior
2. auricularis superior
3. auricularis posterior

Front 7

Auricularis anterior location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 7

anterior to ear
O: temporal fascia
I: anterior part of major helix of ear
Temporal branch
Pulls auricle forward and up

Front 8

Auricularis superior location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 8

above ear
O: temporal fascia
I: superior part of ear
Temporal branch
Pulls auricle up

Front 9

Auricularis posterior location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 9

Behind ear
O: Mastoid process
I: posteroinferior aspect of ear
Posterior Auricular branch
Pulls auricle back

Front 10

What are the 3 major muscles of facial expression of the nose?

Back 10

1. procerus
2. nasalis
3. depressor septi

Front 11

Procerus location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 11

bony bridge of nose
O: fascia of nasal bone
I: Dermis above glabella
Buccal branch
Depresses eyebrows medially

Front 12

What branch of CN VII innervates all 3 muscles of facial expression of the nose?

Back 12

Buccal branch of CN VII

Front 13

Nasalis location?
O: (2)
I: (1)
Branch of CN VII?
Function?

Back 13

cartilaginous bridge and wing of nose
O: maxilla and alar cartilage
I: dermis of nose across bridge
Buccal branch
dilates nares

Front 14

Depressor septi?
O: (1)
I: (2)
Branch of CN VII?
Function?

Back 14

lateral to the philtrum
O: maxilla
I: septum and ala of nose
Buccal branch
Constricts nares

Front 15

What are the 2 major muscles of facial expression of the eye?

Back 15

1. orbicularis oculi
2. corrugator

Front 16

Orbicularis oculi location?
O: (4)
I: (5)
Branches of CN VII?
Function?

Back 16

around orbit
O: nasal process of frontal bone, frontal process of maxilla, medial palpebral ligament, lacrimal bone
I: lateral palpebral raphe, frontalis muscle, corrugator muscle, superior tarsi, inferior tarsi
Temporal and zygomatic branches
Closes the eye

Front 17

What branches (2) of CN VII innervates both major muscles of facial expression in the eye, the orbicularis oculi and currugator?

Back 17

temporal and zygomatic branches

Front 18

Corrugator location?
O: (1)
I: (1)
Branches of CN VII?
Function?

Back 18

deep to obicularis oculi
O: medial part of superciliary arch
I: dermis covering supraorbital foramen
temporal and zygomatic branches
forms vertical wrinkles between eyebrows

Front 19

What is the major muscle of facial expression in the neck and chin?

Back 19

platysma

Front 20

Platysma location?
O: (2)
I: (2)
Branch of CN VII?
Function?

Back 20

neck and chin
O: pectoral fascia, deltoid fascia
I: inferior border of body of mandible, skin of face
Cervical branch
depresses mandible, corner of mouth, and lower lip

Front 21

What muscle of facial expression wrinkles forehead and raises eyebrows and is innervated by temporal branch of CN VII?

Back 21

frontalis

Front 22

What muscle of facial expression tightens the scalp and is innervated by posterior auricular branch of CN VII?

Back 22

occipitalis

Front 23

What muscle of facial expression elevates the ear, is attached to the galea aponeurotica, and is innervated by the temporal branch of CN VII?

Back 23

temporoparietalis

Front 24

What muscle of facial expression depresses eyebrows medially and is innervated by the buccal branch of CN VII?

Back 24

procerus

Front 25

What muscle of facial expression dilates nares and is innervated by the buccal branch of CN VII?

Back 25

nasalis

Front 26

What muscle of facial expression constricts nares and is innervated by buccal branch of CN VII?

Back 26

depressor septi

Front 27

What muscle of facial expression closes the eye and is innervated by temporal and zygomatic branches of CN VII?

Back 27

orbicularis oculi

Front 28

What muscle of facial expression forms vertical wrinkles between eyebrows and is innervated by temporal and zygomatic branches of CN VII?

Back 28

corrugator

Front 29

What 2 muscles of facial expression elevate upper lip and are innervated by buccal branch of CN VII?

Back 29

levator labii superioris, zygomaticus minor

Front 30

What muscle of facial expression dilates nares and elevates upper lip and is innervated by buccal branch of CN VII?

Back 30

levator labii superioris aleque nasi

Front 31

What 2 muscles of facial expression lift corners of the mouth and are innervated by buccal branches of CN VII?

Back 31

levatori anguli oris, zygomaticus major

Front 32

What muscle of facial expression draws corner of mouth laterally and is innervated by buccal and mandibular branches of CN VII?

Back 32

risorius

Front 33

What 3 muscles of facial expression depress the lower lip and are innervated by buccal and mandibular branches of CN VII?

Back 33

depressor labii inferioris, depressor anguli oris, mentalis

Front 34

What muscle of facial expression depresses the corner of the mouth and is innervated by buccal and mandibular branches of CN VII?

Back 34

depressor anguli oris

Front 35

What muscle of facial expression wrinkles the chin and protrudes the lower lip and is innervated by buccal and mandibular branches of CN VII?

Back 35

mentalis

Front 36

What muscle of facial expression closes, purses, and protrudes lips and is innervated by buccal branch of CN VII?

Back 36

orbicularis oris

Front 37

What muscle of facial expression compresses the cheek and is innervated by buccal branch of CN VII?

Back 37

buccinator

Front 38

Levator labii superioris location?
O: (2)
I: (1)
Branch of CN VII?
Function?

Back 38

upper lip
O: zygoma and maxilla just above infraorbital foramen
I: upper lip
buccal branch
elevates upper lip

Front 39

Levator labii superioris alaque nasi location?
O: (2)
I: (2)
Branch of CN VII?
Function?

Back 39

upper lip and side of nose
O: maxilla, frontal process
I: upper lip, alar cartilage
buccal branch
dilates nares, elevates upper lip

Front 40

Levator anguli oris location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 40

corner of the mouth
O: canine fossa of maxilla
I: corner of mouth
buccal branch
lifts corner of mouth

Front 41

Zygomaticus major location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 41

cheek and corner of mouth
O: temporal process of zygoma
I: corner of mouth
buccal branch
lifts corner of mouth

Front 42

Zygomaticus minor location?
O: (1)
I: (1)
Branch of CN VII?
Function?

Back 42

cheek and corner of mouth
O: maxillary process of zygoma
I: upper lip medial to corner of mouth
buccal branch
elevates upper lip

Front 43

Risorius location?
O: (1)
I: (1)
Branches of CN VII?
Function?

Back 43

cheek
O: masseteric fascia
I: corner of mouth
buccal and mandibular branches
draws corner of mouth laterally

Front 44

Depressor labii inferioris location?
O: (1)
I: (1)
Branches of CN VII?
Function?

Back 44

lower lip
O: oblique line of mandible
I: lower lip
buccal and mandibular branches
depresses lower lip

Front 45

Depressor anguli oris location?
O: (1)
I: (1)
Branches of CN VII?
Function?

Back 45

corner of mouth
O: oblique line of mandible
I: corner of mouth
buccal and mandibular branches
depresses corner of mouth

Front 46

Mentalis location?
O: (1)
I: (1)
Branches of CN VII?
Function?

Back 46

chin
O: incisive fossa of mandible
I: dermis of skin
buccal and mandibular branches
wrinkles chin and protrudes lower lip

Front 47

Orbicularis oris location?
O: (4)
I: (2)
Branch of CN VII?
Function?

Back 47

circumscribes the mouth
O: maxilla, mandible, nasal septum, muscles around mouth
I: dermis of lip, surrouding muscles
buccal branch
closes, purses, and protrudes lips

Front 48

Buccinator location?
O: (3)
I: (1)
Branch of CN VII?
Function?

Back 48

cheek
O: pterygomandibular raphe, max. alveola, mand alveola
I: muscles of mouth
buccal branch
compresses cheek to force food onto occlusal surfaces from vestibule

Front 49

What is another name for the corrugator muscle?

Back 49

supercillii

Front 50

What is the "smiling muscle" because it pulls the corner of the mouth laterally?

Back 50

risorius

Front 51

All the depressors of the lip, except platysma, are innervated by what branch(es) of CN VII?

Back 51

buccal and mandibular branches

Front 52

All of the elevators of the lip (5) are innervated by what branch(es) of CN VII?

Back 52

buccal branch

Front 53

What are the 4 "depressors of the lip"?

Back 53

depressor labii inferioris
depressor anguli oris
mentalis
platysma

Front 54

What are the 5 "elevators of the lip"?

Back 54

levator labii superioris alaque nasi
levator labii superioris
levator anguli oris
zygomaticus minor
zygomaticus major

Front 55

What muscle(s) does the parotid pierce to enter the oral cavity through the Stenson duct?

Back 55

buccinator

Front 56

Between what muscles is the pterygomandibular raphe found?

Back 56

buccinator and superior pharyngeal constrictor muscles

Front 57

What CN supplies sensory information to the face?

Back 57

CN V

Front 58

What are the 6 branches of CN VII?

Back 58

1. temporal
2. zygomatic
3. buccal
4. mandibular
5. cervical
6. auricular

Front 59

What pnemonic describes 5/6 branches of CN VII, and what is the 1 branch that isn't described?

Back 59

Two zebras bit my cousin.

auricular branch not accounted for

Front 60

1

Back 60

mentalis