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
Temporalis function
elevation & retraction (posterior aspect of the muscle) fo the mandible
Temporalis innervation
Mandibular nerve (V3)
Lateral pterygoid attachments
from… the infratemporal surface of the sphenoid & lateral surface of the lateral pterygoid plate
to… the neck of the mandible & the TMJ disk
Lateral pterygoid function
depresses mandible, protracts & acts with the ipsilateral medial pterygoid to rotate the mandible to produce side-to-side movements during chewing
Lateral pterygoid innervation
Mandibular nerve
Medial pterygoid attachments
from… the medial surface of the lateral pterygoid plate & adjacent maxilla
to… the medial aspect of the angle of the mandible
Medial pterygoid function
elevation of the mandible & acts with the ipsilateral lateral pterygoid to rotate the mandible to produce the side-to-side movements during trituration of food
Medial pterygoid innervation
mandibular nerve (V3)
Extraocular muscles
Inferior oblique
Inferior rectus
Levator palpebrae superioris
Medial rectus
Superior rectus
Lateral rectus
Superior oblique
Inferior oblique attachments
from… the maxilla lateral to the nasolacrimal groove
to… the inferolateral posterior aspect of the sclera
Inferior oblique function
elevation, abduction and extorsion of the eye
Inferior oblique innervation
inferior ramus of the oculomotor nerve
Inferior rectus attachments
from… the common tendinous ring
to… the inferior aspect of the sclera
Inferior rectus function
depression, adduction & extorsion of the eye
Inferior rectus innervation
inferior ramus of the oculomotor nerve
Levator palpebrae superioris attachments
from… the inferior aspect of the lesser wing of the sphenoid
to… the tarsus and skin of the upper lid
Levator palpebrae superioris function
elevation of the upper lid
Levator palpebrae superioris innervation
Superior ramus of oculomotor nerve
Medial rectus attachments
from… the common tendinous ring
to… the medial aspect of the sclera
Medial rectus function
adduction of the eye
Medial rectus innervation
inferior ramus of the oculomotor nerve
Superior rectus attachments
from… the common tendinous ring
to… the superior aspect of the sclera
Superior rectus function
elevation, adduction & intorsion of the eye
Superior rectus innervation
superior ramus of the oculomotor nerve
Lateral rectus attachments
from… the common tendinous ring
to… the lateral aspect of the sclera
Lateral rectus function
abduction of the eye
Lateral rectus innervation
abducens nerve
Superior oblique attachments
from… the superomedial, posterior aspect of the orbit
to… the superolateral, posterior aspect of the sclera passing around the trochlea (superomedial, anterior aspect of the orbit)
Superior oblique function
depression, abduction, & intorsion of the eye
Superior oblique innervation
trochlear nerve
Occpitofrontalis facial expression
Wrinkling forehead
Orbicularis oculi facial expression
Closing eye, winking
Levator labii superioris facial expression
flaring nostrils, raises upper lip
Nasalis facial expression
flaring nostrils
Buccinator facial expression
compresses cheek when blowing
Orbicularis oris facial expression
closes mouth, kissing
Zygomaticus major facial expression
smiling
Depressor labii inferioris facial expression
pouting, sadness
Depressor anguli oris facial expression
frown
Platysma facial expression
wrinkles nuchal skin - tension/stress
Paranasal sinuses
Frontal sinus
Ethmoid sinus
Maxillary sinus
Sphenoid sinus
Identify paranasal sinuses: A, B, C, D
A: Frontal Sinus
B: Ethmoid sinus
C: Sphenoid sinus
D: Maxillary sinus
Bones that form the roof of the orbit
frontal bone
lesser wing of sphenoid
Bones that form the medial wall of the orbit
ethmoid bone
lacrimal bone
Bones that form the floor of the orbit
maxilla
zygomatic bone
Bones that form the lateral wall of the orbit
Greater wing of sphenoid bone
zygomatic bone
Bony orbit openings
Optic canal
Superior orbital fissure
Inferior orbital fissure
Draw branches of the aortic arch
Comapare to drawing
Draw branches of the external carotid artery
Compare to drawing
Draw venous drainage of head & neck
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Draw cerebral arterial circle
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Draw venous drainage of the brain
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Draw lymphatic drainage of head & neck
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