mm of facial expression Flashcards
(29 cards)
Frontal belly of occipitofrontalis m
- Galea aponeurotica
- eyebrows and forehead
- wrinkle forehead
- raise eyebrows
Temporal branch (CN7)
Occipital belly of occipitofrontalis m
Superior nuchal line
Galea aponeurotica
-Pulls scalp backwards
Posterior auricular n (CN7)
Orbicularis oculi (orbital part)
- nasal part of frontal bone
- frontal process of max
- medial palpebral ligament
- itself
- around the orbit
- onto adjacent mm
- close eyelids forcefully
- wrinkles forehead
Temporal branch (CN7) Zygomatic branch (CN7)
Orbicularis oculi (palpebral part)
- medial palpebral ligament
- lateral palpebral raphe
- close eyelids gently
Temporal branch (CN7) Zygomatic branch (CN7)
Corrugator supercilii
- supraciliary arch
- medial half of eyebrow
- draw eyebrows in and down
- vertical wrinkles on forehead
Temporal branch (CN7)
Procerus
- nasal bone
- lateral nasal cartilage
- skin between eyebrows
- draws medial angle of eyebrows down
Temporal branch (CN7) Zygomatic branch (CN7)
Nasalis (transverse part)
-maxilla (lateral to nose)
- aponeurosis across dorsum of nose
- fibers from opposite side
-compress nares
Zygomatic branch (CN7) Buccal branch (CN7)
Nasalis (alar part)
- maxilla (over lateral incisor)
- alar cartilage of nose
- widens nasal aperture
- open nostril
Zygomatic branch (CN7) Buccal branch (CN7)
Depressor septi nasi
- maxilla (over central incisor)
- lower part of nasal septum
- pull nose down
Buccal branch (CN7)
Orbicularis oris
- midline of max and mand
- buccinator m
- other mm on lips and angle of mouth
- skin and mucosa of lips
- itself
- close lips
- protrude lips
Buccal branch (CN7) Marginal mandibular branch (CN7)
Buccinator
- posterior part of alveolar process of max and mand
- pterygomandibular raphe
- lips
- orbicularis oris
- press cheek against teeth
- compress distended cheeks
Buccal branch (CN7)
Levator labii superioris
- maxilla (above infraorbital foramen)
- upper lip
- elevate/evert upper lip
- helps form nasolabial fold
Zygomatic branch (CN7) Buccal branch (CN7)
Levator labii superioris alaeque nasi
-frontal process of maxilla
- alar cartilage
- upper lip
- elevate upper lip
- open nostril
Zygomatic branch (CN7) Buccal branch (CN7)
Levator anguli oris
- maxilla (below infraorbital foramen)
- corner of mouth
- raise corner of mouth
- helps form nasolabial fold
Zygomatic branch (CN7) Buccal branch (CN7)
Zygomaticus major
-posterior part of zygomatic bone
- corner of mouth
- orbicularis oris m
-raise corner of mouth UP AND LATERALLY
Zygomatic branch (CN7)
Zygomaticus minor
- anterior part of zygomatic bone
- upper lip medial to corner
- elevate/evert upper lip
- deepens nasolabial fold
Zygomatic branch (CN7)
Risorius
- parotid fascia
- corner of mouth
- raise corner of mouth LATERALLY
Marginal mandibular branch (CN7)
Depressor anguli oris
-anterolateral base of mandible
- corner of mouth
- orbicularis oris
-depress corner of mouth DOWN AND LATERALLY
Marginal mandibular branch (CN7)
Depressor labii inferioris
- anterolateral border of mandible
- platysma m
- lower lip at midline
- orbicularis oris m
- depressor labii inferioris from opposite side
-depress/evert lower lip
Marginal mandibular branch (CN7)
mentalis
- mandible under incisors
- mentolabial sulcus
- elevate/protrude lower lip
Marginal mandibular branch (CN7)
Anterior auricular
Aponeurosis of scalp
Temporal fascia
Helix of ear
-pull ear up and forward
Temporal branch (CN7)
Superior auricular
Aponeurosis of scalp
Temporal fascia
Auricle
-raise ear
Temporal branch (CN7)
Posterior auricular
Mastoid process
Auricle
-pull ear back
Posterior auricular n (CN7)
Platysma
Clavicular region
- Inferior border of mandible
- cheek
- lower lip
- tense skin of neck
- retract lower lip and corner of mouth
- helps forced depression of mandible
Cervical branch (CN7)
