Face & Parotid Region Flashcards
Buccinator attachments
from… alveolar processes of the maxilla & mandible, pterygoid Hamulus & pterygomandibular raphe
to… angle of mouth
Buccinator function
compresses the cheek (when blowing)
Buccinator innervation
buccal branch of the facial n
Depressor anguli oris attachments
from… mandible
to… angle of mouth
Depressor anguli oris function
depresses angle of mouth laterally (frown, sadness)
Depressor anguli oris innervation
buccal & mandibular branch of the facial n.
Depressor labii inferioris attachments
from… oblique line of mandible
to… skin of lower lip
Depressor labii inferioris function
depresses lower lip (pouting, sadness)
Depressor labii inferiorirs innervation
mandibular branch of the facial nerve
Frontalis attachments
from… the superficial fascia of the eyebrows
to… the epicranial aponeurosis
Frontalis function
protracts the scalp or elevates eyebrows & nose (surprise or curiosity)
Frontalis innervation
temporal branch of the facial nerve
Levator labii superioris attachments
from… the inferior orbital margin
to… the lateral aspect of the upper lip
Levator labii superioris function
raises & everts upper lip (showing sadness)
Levator labii superioris innervation
buccal & zygomatic branches of the facial nerve
Nasalis attachments
from… the maxilla lateral & inferior to the nasal notch
to… the bridge & ala of the nose
Nasalis function
Transverse fibers compress & alar fibers widen the nasal aperture (flaring nostrils during anger or exertion)
Nasalis innervation
buccal branch of facial nerve
Orbicularis oculi attachments
from… orbital margin & medial palpebral ligament
to… superficial fascia of the eyelid
Orbicularis oculi function
a palpebral sphincter (closes eyes, winking)
Orbicularis oculi innervation
temporal & zygomatic branches of the facial nerve
Orbicularis oris attachments
from… angle of mouth
to… the superficial fascia of the upper lip
Orbicularis oris function
an oral sphincter (closes mouth, kissing)
Orbicularis oris innervation
buccal & mandibular branches of the facial nerve
Platysma attachments
from… the lower border of the mandible
to… the superficial fascia of the skin of the neck overlying the clavicle
Platysma function
wrinkles the anterior nuchal skin (conveying tension or stress)
Platysma innervation
cervical branch of the facial nerve
Zygomaticus major attachments
from… zygomatic bone
to… angle of mouth
Zygomaticus major function
raises angle of mouth (smiling, happiness)
Zygomaticus major innervation
buccal & zygomatic branches of the facial nerve
Muscles of mastication
Masseter
Temporalis
Lateral pterygoid
Medial pterygoid
Masseter attachments
from… the zygomatic arch
to… angle of the mandible & lateral aspect of the ramus
Masseter function
elevation, protraction and retraction (deep fibers) of the mandible
Masseter innervation
mandibular nerve (V3)
Temporalis attachments
from… the temporal fossa
to… the coronoid process & anterior border of the ramus of the mandible