Face I Flashcards
(29 cards)
Facial muscles are innervated by
CN VII
Facial function is bounded by
hairline, chin, & external ears
What are the 5 facial branches?
Temporal
Zygomatic
Buccal
Mandibular
Cervical
What are the lip raiser muscles?
- Levator labii superioris
- Zygomaticus major
- Zygomaticus minor
- Levator anguli oris
- Levator labii superioris alaeque nasi
- Risorius
What are the lip depressors?
- Depressor labii inferioris
- Depressor anguli oris
Mouth, Chin & Cheek muscles
Mouth = Orbicularis oris
Chin = Mentalis
Cheek = Buccinator
Action, posterior & anterior attachment of buccinator muscle
Action: presses mucosa against teeth
Posterior attachment: pterygomandibular raphe
Anterior attachment: corners of mouth, blending w/ the orbicularis oris
Muscles of the nose. What are the parts of the nasalis?
- Nasalis = Transverse & Alar
- Depressor septi
- Procerus
Muscles of the eyes. What are parts of the orbicularis oculi?
- Orbicularis oculi = Palpebral & Orbital
- Corrugator Supercilii
What is the facial gland called?
Parotid gland
Temporal branch of the facial n. innervates
frontalis, orbicularis, oculi, & corrugator supercilli
Zygomatic branch of the facial n. innervates
Orbicularis oculi
Buccal branch of the facial n. innervates
orbicularis oris, buccinator & zygomaticus
Marginal mandibular branch of the facial n. innervates
Mentalis
Cervical branch of the facial n. innervates
Platysma
Label the facial branches
1 = Temporal branch
2 = Zygomatic branch
3 = Buccal branch
4 = Marginal Mandibular branch
5 = Cervical branch
Sensory innervation for most of the face
CN V
V1, V2 & V3 innervate what part of face?
V1 = innervates tip of nose & above eyes
V2 = innervates part of midface & around nose
V3 = innervates everything around mandible, except the angle
Branches of V1? What do they pass through?
Supraorbital
- Goes through supraorbital foramen/notch
Supratrochlear
- Goes through orbit
Branches of V2? What do they pass through?
Infraorbital
- Goes through infraorbital foramen
Zygomaticotemporal
- Goes through zygomaticotemporal foramen
Zygomaticofacial
- Goes through zygomaticofacial foramen
Branches of V3? What do they pass through?
Mental
- passes through mental foramen
The facial artery branches off of
external carotid artery
What are the cervical branches of the facial artery?
Ascending palatine
Tonsillar
Glandular
Submental
What are the facial branches of the facial artery?
Inferior labial
Superior labial
Lateral nasal
Angular (terminal)