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60 Cards in this Set
- Front
- Back
What is the 3 primary muscles of facial expression of the scalp?
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1. frontalis
2. occipitalis 3. temporoparietalis |
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What 2 scalp muscles together make up the epicranius or occipitofrontalis muscle with a galea aponeurotica (CT sheet of collagen) in between?
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frontalis and occipitalis
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Frontalis location?
O: (3) I: (1) Branch of CN VII? Function? |
forehead
O: procerus, corrugator, orbicularis oculi I: galea aponeurotica Temporal branch Wrinkles forehead and raises eyebrows |
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Occipitalis location?
O: (2) I: (1) Branch of CN VII? Function? |
back of head
O: mastoid process, superior nuchal line I: galea aponeurotica Posterior auricular branch Tightens scalp |
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Temporoparietalis location?
O: (1) I: (1) Branch of CN VII? Function? |
temple
O: temporal fascia I: galea aponeurotica Temporal branch Elevates the ear |
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What are the 3 primary muscles of facial expression in the ear?
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1. auricularis anterior
2. auricularis superior 3. auricularis posterior |
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Auricularis anterior location?
O: (1) I: (1) Branch of CN VII? Function? |
anterior to ear
O: temporal fascia I: anterior part of major helix of ear Temporal branch Pulls auricle forward and up |
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Auricularis superior location?
O: (1) I: (1) Branch of CN VII? Function? |
above ear
O: temporal fascia I: superior part of ear Temporal branch Pulls auricle up |
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Auricularis posterior location?
O: (1) I: (1) Branch of CN VII? Function? |
Behind ear
O: Mastoid process I: posteroinferior aspect of ear Posterior Auricular branch Pulls auricle back |
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What are the 3 major muscles of facial expression of the nose?
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1. procerus
2. nasalis 3. depressor septi |
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Procerus location?
O: (1) I: (1) Branch of CN VII? Function? |
bony bridge of nose
O: fascia of nasal bone I: Dermis above glabella Buccal branch Depresses eyebrows medially |
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What branch of CN VII innervates all 3 muscles of facial expression of the nose?
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Buccal branch of CN VII
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Nasalis location?
O: (2) I: (1) Branch of CN VII? Function? |
cartilaginous bridge and wing of nose
O: maxilla and alar cartilage I: dermis of nose across bridge Buccal branch dilates nares |
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Depressor septi?
O: (1) I: (2) Branch of CN VII? Function? |
lateral to the philtrum
O: maxilla I: septum and ala of nose Buccal branch Constricts nares |
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What are the 2 major muscles of facial expression of the eye?
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1. orbicularis oculi
2. corrugator |
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Orbicularis oculi location?
O: (4) I: (5) Branches of CN VII? Function? |
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 |
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What branches (2) of CN VII innervates both major muscles of facial expression in the eye, the orbicularis oculi and currugator?
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temporal and zygomatic branches
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Corrugator location?
O: (1) I: (1) Branches of CN VII? Function? |
deep to obicularis oculi
O: medial part of superciliary arch I: dermis covering supraorbital foramen temporal and zygomatic branches forms vertical wrinkles between eyebrows |
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What is the major muscle of facial expression in the neck and chin?
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platysma
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Platysma location?
O: (2) I: (2) Branch of CN VII? Function? |
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 |
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What muscle of facial expression wrinkles forehead and raises eyebrows and is innervated by temporal branch of CN VII?
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frontalis
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What muscle of facial expression tightens the scalp and is innervated by posterior auricular branch of CN VII?
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occipitalis
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What muscle of facial expression elevates the ear, is attached to the galea aponeurotica, and is innervated by the temporal branch of CN VII?
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temporoparietalis
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What muscle of facial expression depresses eyebrows medially and is innervated by the buccal branch of CN VII?
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procerus
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What muscle of facial expression dilates nares and is innervated by the buccal branch of CN VII?
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nasalis
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What muscle of facial expression constricts nares and is innervated by buccal branch of CN VII?
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depressor septi
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What muscle of facial expression closes the eye and is innervated by temporal and zygomatic branches of CN VII?
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orbicularis oculi
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What muscle of facial expression forms vertical wrinkles between eyebrows and is innervated by temporal and zygomatic branches of CN VII?
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corrugator
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What 2 muscles of facial expression elevate upper lip and are innervated by buccal branch of CN VII?
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levator labii superioris, zygomaticus minor
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What muscle of facial expression dilates nares and elevates upper lip and is innervated by buccal branch of CN VII?
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levator labii superioris aleque nasi
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What 2 muscles of facial expression lift corners of the mouth and are innervated by buccal branches of CN VII?
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levatori anguli oris, zygomaticus major
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What muscle of facial expression draws corner of mouth laterally and is innervated by buccal and mandibular branches of CN VII?
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risorius
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What 3 muscles of facial expression depress the lower lip and are innervated by buccal and mandibular branches of CN VII?
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depressor labii inferioris, depressor anguli oris, mentalis
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What muscle of facial expression depresses the corner of the mouth and is innervated by buccal and mandibular branches of CN VII?
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depressor anguli oris
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What muscle of facial expression wrinkles the chin and protrudes the lower lip and is innervated by buccal and mandibular branches of CN VII?
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mentalis
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What muscle of facial expression closes, purses, and protrudes lips and is innervated by buccal branch of CN VII?
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orbicularis oris
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What muscle of facial expression compresses the cheek and is innervated by buccal branch of CN VII?
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buccinator
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Levator labii superioris location?
O: (2) I: (1) Branch of CN VII? Function? |
upper lip
O: zygoma and maxilla just above infraorbital foramen I: upper lip buccal branch elevates upper lip |
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Levator labii superioris alaque nasi location?
O: (2) I: (2) Branch of CN VII? Function? |
upper lip and side of nose
O: maxilla, frontal process I: upper lip, alar cartilage buccal branch dilates nares, elevates upper lip |
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Levator anguli oris location?
O: (1) I: (1) Branch of CN VII? Function? |
corner of the mouth
O: canine fossa of maxilla I: corner of mouth buccal branch lifts corner of mouth |
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Zygomaticus major location?
O: (1) I: (1) Branch of CN VII? Function? |
cheek and corner of mouth
O: temporal process of zygoma I: corner of mouth buccal branch lifts corner of mouth |
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Zygomaticus minor location?
O: (1) I: (1) Branch of CN VII? Function? |
cheek and corner of mouth
O: maxillary process of zygoma I: upper lip medial to corner of mouth buccal branch elevates upper lip |
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Risorius location?
O: (1) I: (1) Branches of CN VII? Function? |
cheek
O: masseteric fascia I: corner of mouth buccal and mandibular branches draws corner of mouth laterally |
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Depressor labii inferioris location?
O: (1) I: (1) Branches of CN VII? Function? |
lower lip
O: oblique line of mandible I: lower lip buccal and mandibular branches depresses lower lip |
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Depressor anguli oris location?
O: (1) I: (1) Branches of CN VII? Function? |
corner of mouth
O: oblique line of mandible I: corner of mouth buccal and mandibular branches depresses corner of mouth |
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Mentalis location?
O: (1) I: (1) Branches of CN VII? Function? |
chin
O: incisive fossa of mandible I: dermis of skin buccal and mandibular branches wrinkles chin and protrudes lower lip |
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Orbicularis oris location?
O: (4) I: (2) Branch of CN VII? Function? |
circumscribes the mouth
O: maxilla, mandible, nasal septum, muscles around mouth I: dermis of lip, surrouding muscles buccal branch closes, purses, and protrudes lips |
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Buccinator location?
O: (3) I: (1) Branch of CN VII? Function? |
cheek
O: pterygomandibular raphe, max. alveola, mand alveola I: muscles of mouth buccal branch compresses cheek to force food onto occlusal surfaces from vestibule |
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What is another name for the corrugator muscle?
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supercillii
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What is the "smiling muscle" because it pulls the corner of the mouth laterally?
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risorius
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All the depressors of the lip, except platysma, are innervated by what branch(es) of CN VII?
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buccal and mandibular branches
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All of the elevators of the lip (5) are innervated by what branch(es) of CN VII?
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buccal branch
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What are the 4 "depressors of the lip"?
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depressor labii inferioris
depressor anguli oris mentalis platysma |
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What are the 5 "elevators of the lip"?
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levator labii superioris alaque nasi
levator labii superioris levator anguli oris zygomaticus minor zygomaticus major |
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What muscle(s) does the parotid pierce to enter the oral cavity through the Stenson duct?
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buccinator
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Between what muscles is the pterygomandibular raphe found?
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buccinator and superior pharyngeal constrictor muscles
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What CN supplies sensory information to the face?
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CN V
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What are the 6 branches of CN VII?
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1. temporal
2. zygomatic 3. buccal 4. mandibular 5. cervical 6. auricular |
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What pnemonic describes 5/6 branches of CN VII, and what is the 1 branch that isn't described?
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Two zebras bit my cousin.
auricular branch not accounted for |
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1
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mentalis
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