Face and Parotid Flashcards
what makes up the superior saggital sinus
periosteal dura and meningial dura
what makes up the diaphragma sellae
diaphragm of dura that forms the roof of the pituitary
what blood vessel gives rise to the superficial temporal a
ECA
what blood vessel gives rise to the supratrochlear a.
opthalmic artery which comes off of the ICA right next to the optic nerve, and goes towards the eye
what blood vessel gives rise to the occipital artery
duric branch of ECA comes up around the back of the head
what nerve innervates skin over bregma?
V1 supraorbital n
what nerve supplies the occipitalis m
CN VII
what nerve supplies the falx cerebelli?
CN X
what nerve supplies the temporalis m.
CN V3. remember these are SVE
anything derived from the first pharyngial arch are innervated by__
trigeminal CN V
trace a drop of blood from the great vein of galen to the heart
straight sinus to confluence to transverse to sigmoid to internal jugular to subclavian v to brachiocephalic v. to SVC
what bones contain the glabella?
frontal
what bone contains the transverse sinus
occipital
what forms the medial border of the cavernous sinus
sphenoid. the body of the sphenoid is hollow (air sinus)
what attaches to the tentorium cerebelli (bone)
sphenoid, parietal, temporal
what bone attaches to the falx cerebri
occipital, ethmoid (crista galli), frontal
what cranial nerves pass through the cavernous sinus?
III, IV, VI in the middle V1, V2 in the wall of the sinus
what blood vessels are involved in creating a subdural hematoma?
this is a venous bleed so… bridging veins from the cerebral veins that connect into the superior saggital sinus
whats the philtrum?
the sulcus above your lip, and beneath your lip where a cleft palate can develop
what muscle do you use to keep your cheeks from puffing out when you blow up a balloon?
buccinator m.
part of the obicularis oculi attaches to a little bone near the nose. Which one?
lacrimal bone
which nerve is the nerve that feels if you put eyeshadow on?
lacrimal nerve
which nerve is the skin of the cheek? where is it from
buccal nerve. CN V3
which nerve is the nerve that feels if you put blush on your cheeks?
infraorbital nerve
which nerves would need to grow if pinnochio lied a lot?
external nasal nerve (branch of anterior ethmoidal) and infraorbital nerve
CN V3 drops down through what opening?
foramen ovale
t/f the otic ganglion belongs to CN V
no. some of the autonomics hitchhike on CN V thats why the ganglion LOOKS like it belongs
foramen where CN VII emerges
stylomastoid foramen
CN V2 goes through what opening?
foramen rotundum
how many nerves go through the superior orbital fissure/
6, plus the superior opthalmic vein
what muscle covers the infraorbital nerve? what is its function
levator labii superioris. lifts the lip
if you have a blink reflex, what nerves are you testing
CN V for the afferent, CN VII for the blink
sometimes you can have trigeminal neuralgia. whats the other name for it
“tic de la roux”.
three muscles that are under your eyebrown (no unibrow)
corrugator supercilii, obicularis oculi, occipitofrontalis
stoke that affects CN VII will have trouble with…
blinking, tears, dry cornea
kissing muscle?
orbicularis oris
muscle that helps you pout?
mentalis muscle
muscles of mastication are innervated by …?
V3
raphe between the buccinator and superior pharangeal conductor m?
pterygomandibular raphe. it is the attachment point for buccinator
bells palsy is related to sensitivity of sound. whats that called
hyperacusia because it cannot tighten stapedius that tightens the ear drum
what are you gonna have to get good at?
knowing where a lesion is, and what will be affected by that lesion. yayyyy!!! Puzzles!!!!
what muscle gives you the elvis presley look?
zygomaticus major and minor
which muscle creats a lustful facial expression?
nasalis
if you can wrinkle your forehead but you can’t do the other, what kind of lesion?
peripheral lesion of CN VII
facial artery runs underneath __ and __
zygomatic major and minor
retromandibular vein splits to __ ,__
EJV, combines with facial v to drain into the IJV
does posterior auricular vein drain to retromandibular
yes
pterygoid plexus can drain to?
maxillary, deep facial and other veins
parotid gland wraps around __
ramus of mandible
what three things run through the partotid
retromandibular v. and external carotid a., facial n
the parotid duct is ___ to the buccal branches of CN VII
look it up
innver vation of parotid is through?
glossopharyngeal n
CN 9-11 go through
jugular foramen
theres a branch that turns around and go back into the skull and forms a plexus. whats the nerve and the plexus
tympanic nerve and tympanic plexus. the nerve is mixed.
where does the lesser petrosal nerve come from?
the tympanic plexus
where does the lesser petrosal nerve go to?
otic ganglion, adjacent to the CN V. it synapses here and becomes postganglionic
postganglionic nerves go to parotid via ___.
auriculotemporal nerve. parasympathetics HITCH HIKE through this. they are NOT CN V3 branches.
lymphatics for the head and neck drain to the?
deep cervical nodes
how could squamous cell carcinoma spread lymphatically?
just look at a picture
T/F CN VII innervation of facial expression are SVE
true
