superficial face

which area of the face does the supraorbital nerve innervate

forehead above orbit, back to lambdoid suture

which area of the face does the supratrochlear nerve innervate

central forehead/glabella

which part of the face does the infratrochlear nerve innervate

nose bridge

which part of the face does the external nasal n innervate

most of nasal dorsal and the apex of the nose

which part of the face does the lacrimal nerve innervate

skin at the lateral brow

what 3 nerves is the upper eyelid innervated by?

supratrochlear, supraorbital, lacrimal

which facial nerve branches are associated with the ophthalmic division of the trigeminal nerve?

supraorbital, supratrochlear, infratrochlear, external nasal, lacrimal

which part of the face does the zygomaticotemporal nerve innervate

hairless temple and some hairy temple

which part of the face does the zygomaticofacial nerve innervate

malar region (prominence of cheek)

which part of the face does the infraorbital nerve innervate

lower eyelid, lateral nose, columella, upper lip

which nerve branches are associated with the maxillary division of the trigeminal nerve?

zygomaticotemporal, zygomaticofacial, infraorbital

which part of the face does the auriculotemporal nerve innervate

upper anterior ear (including tragus), hairy temple, TMJ

which part of the face does the buccal (long buccal) nerve innervate

most of the cheek overlying the mandible

which part of the face does the mental nerve innervate

chin and lower lip

which nerve branches are associated with the mandibular division of the trigeminal nerve

auriculotemporal, long buccal, mental

which part of the face does the greater auricular nerve innervate

ear lobule, skin over the angle of the mandible

what is the function of the frontal muscle?

elevates eyebrows—>creates forehead lines

what is the function of glabellar group of muscles

corrugated supercilii, procesrus and depressor supercolli—>draw eyebrows together and down creating worry lines

what is the function of the orbicularis oculi muscle?

wincing and blinking, crows feet

what are the parts of the orbicularis oculi muscle

orbital, palpebral, lacrimal

what is the function of levator palpebrae superioris

elevation of the upper eyelid, CN III, ptosis if lesioned

what is the function of superior tarsal m

smooth muscle tissue, Horners syndrome and mild ptosis

what is the function of nasalis muscle

may compress or dilate nares

depressor septi nasi function

may depress nasal septum and elevate upper lip

levator labii superioris alaquae nasi function

elevates medial aspect of upper lip, contributes to bunny lines on the nose, Elvis muscle

levator labii superioris, levator anguli oris, and the zygomaticus muscles

smiling superior lip elevation, dimples

orbicularis oris function

closes mouth and puckers lips, smokers lines, pout reflex

depressor angle oris and depressor labii inferioris function

sad face—>depresses angle of mouth and lower lip, sad mouth lines

mentalis muscle function

everts lower lip, peau d orange chin

buccinator function

pushes food medially while tongue pushes food alterally

risorius muscle function

pulls angle of mouth backwards

platysma function

depresses lower lip, innervated by cervical branch of CN VII, neck lift

which muscles are innervated bay the temporal branch of the facial nerve

frontalis, corrugator supercolli, procerus, depressor supercolli, orbicularis oculi

which muscles are innervated by the zygotic branch of frontal nerve

orbicularis oculi, zygomaticus, levator labii superioris aleque nasi, levator anguli oris

which muscles are innervated by the buccal branch of the facial nevre

orbicularis oculi, zygomaticus, LLSAN, levator anguli oris, buccinator, risorius

which muscles are innervated by the marginal mandibular branch of the facial nerve

orbicularis oris, depressor anguli oris, depressor labii inferioris, mentalis

which muscles are innervated by the cervical branch of the facial nerve

platysma

what does lesion of the lower motor neurons (CN VII) cause ?

bells palsy- ipsilateral hemi-facial palsy

what does a lesion of the upper motor neurons cause? cortex or corticolumbar tract

contralateral lower quadrant palsy, like in stroke

what is temporal arteritis

giant cell arteritis is a type of vasculitis mainly affecting the temporal arteries

usually >50 and women

what structures pass through the parotid gland

parotid plexus of CN VII, external carotid a and retromandibular vein

what is the innervation of the parotid gland

parasympathetics from the glossopharyngeal nerve joint with auriculotemporal from CN V