palate, pterygopalatine fossa, paranasal structures Flashcards
what are turbinates
the things that stick out into the nasal cavities
bones that form the pterygomaxillary fissure
maxillary on anterior side, pterygoid plate of sphenoid on the posterior side
what ganglion is in the pterygomaxillary fissure? and what is a nerve that goes into there
a pterygopalatine ganglion and a petrosal nerve. look it up.
if you have a pituitary tumor, how could you get in there to fix it
stick instruments up through the nose to the sella turcica
what canal conects the pterygopalatine fossa to the nose
pterygoid canal
what bone fits into the sphenoid?
ethmoid.
what bones make the pterygopalatine fossa?
palatine bone on medial side, sphenoid posteriorly, maxilla anteriorly
palatine canal contains what nerves
palatine nerves that go to posterior edge of the palate (not sure hard or soft)
does he think that the palatovaginal groove is important?
not sure, its really small and its only purpose is for a litttttle blood vessel to nasopharynx
what are the five canals from the pterygopalatine fossa
palatine, palatovaginal, pterygoid, sphenopalatine foramen, and infraorbital
nerve through the sphenopalatine foramen?
nasal/nasopalatine nerve
the sympathetics that run through the fossa come from?
superior cervical ganglion that turns into a plexus around the ICA
do parasympathetics synapse in the peterygopalatine ganglion?
of course!!
where do the pterygopalatine arteries come from?
maxillary. all of em.
review: post synaptic parasympathetics to the lacrimal gland synapse where?
pterygopalatine ganglion.
what nerve goes around the middle meningeal artery
auriculotemporal nerve
what is the elusive venous plexous?
pterygoid venous plexus in the infratermporal fossa.
what are some major veins that connect to the pterygoid plexus?
welp. i used to know this
why do your teeth hurt when your sinus hurts?
the superior dental plexus nerves run on the inferior edge of the mucous memebrane of the maxillary sinus. when it swells those guys get mad
meatus in your nose?
the groove underneath a nasal conche
greater and lesser palatine nerves are branches of?
V2
where does the external nasal branch come from?
anterior ethmoidal from V1 (remember the nasociliary gave off some branches to the nose?)
sensory to the mucosa of the nose. CN?
V1/2
besides V, what CN is in the nose?
don’t think too hard. olfactory
lesser palatine nerve is sensory to?
SOFT palate.
CN for sensory of palate?
V2. you know this stuff!!
where does the maxillary sinus drain?
when you’re sick, your nose runs. all of the sinuses drain to the nose!!
why do kids get ear infections?
the eustacian tube is horizontal between the ear and the nose. since theres not an incline, crap can get into the middle ear.
why do you have turbinates?
it creates TURBulance to warm and moisten air
space above the superior concha?
spheno-ethmoidal recess
vomer is a part of what bone?
trick question!!! it is its own bone
INFERIOR nasal concha is part of what bone?
another trick question!!! it is its own bone too
SUPERIOR nasal conca is part of what bone?
ethmoid.
what bones articulate with vomer?
palatine bones, ethmoid, maxilla. not sure if thats all of them
where does the sphenoidal sinus drain.
into the nose, but it goes into the spheno-ethmoidal recess
where does the frontal sinus empty? how does it get there?
to nose through ethmoidal bulla into middle meatus
relationship of openings to maxillary sinus and frontal sinus
the ethmoidal bulla is superior and anterior to the opening for maxillary sinus
where does nasolacrimal duct open?
beneath the inferior nasal conche
special name for the space that has the openings for anterior ethmoidal cells
similunar hiatus
your kid gets a pea stuck up their nose, so you look up there. what do you see.
a pea. on the other side, you should be able to see the inferior and middle conchae. NOT the SUPERIOR
branches that go through sphenopalatine foramen go where?
both the septum AND the lateral wall of the nose
5 main arteries that are going into the nose. name for this.
Kiesselbach area. anterior ethmoidal, posterior ethmoidal, sphenopalatine artery ( to lateral wall and septum), superior labial (from facial), greater palatine (from incisive canal)
what is always on the boards?
Kiesselbach area
CN that is posterior to sphenoid sinus
optic chiasm
___ carries psy innervation to all the glands below the oral fissure
chorda tympani
superior continuation of the nasal septum into the cranium
christa galli
