Nasal and Oral cavities Flashcards
the continuous free margin of nasal bone and frontal process of maxilla forming opening of nasal cavity
Piriform aperture
What supplies the skin of the external nose?
Branches of: opthalmic and maxillary A.
Septal branches of facial A.
What is the significance of the “danger triangle of the face”?
This enables infections from the nasal area to spread to the brain. It can cause cavernous sinus thrombosis, meningitis, brain abscess.
Each chonae is bounded medially by?
vomer bone
each chonae communicates with the
nasopharynx
In the nasopharynx, you will find the opening for the auditory tube called
eustachian tube/pharyngotympanic
When you enter the nasal cavity proper, what do you call the projections from the lateral wall?
Turbinates/conchae
What nerve passes through the cribiform plate?
Olfactory nerve
What are the parts that bound the roof of the oral cavity?
palatine process of the maxilla
horizontal plate of palatine bone
What door do you pass through to enter the oropharynx?
oropharyngeal isthmus of fauces
When you get brain freeze, what part do you feel the sensation of pain?
pain in the sphenopalatine ganglion
What artery in the nasal septum orbit from the opthalmic artery?
anterior & posterior ethmoidal arteries
kiesselbach’s area where arteries meet
superior Labial artery, anterior Ethmoidal artery, Greater palatine artery. Septal branch of the facial artery (LEGS)- Lbial,Ethmoidal,Greater,Septal
opening of middle ethmoid sinus
ethmoid bulla
opening of maxillary sinus
urinate process
opening of nasolacrimal duct
inferior nasal meatus
conchae that is part of ethmoid bone
superior,middle conchea
independent cranial/facial bone
inferior conchae
communication between oropharynx & pharynx
isthmus of fauces
leading towards the frontonasal canal, and the frontal sinus communicates the cavity of the nose
Infundibulum
deep curved groove or gutter
openings of maxillary sinus
Anterior ethmoidal air cells
Hiatus semilunaris
prominent buldge, aperture of middle ethmoidal air cells
bulla ethmoidalis
opening of posterior ethmoidal sinus
superior meatus
this is a nasolacrimal duct, permits downward drainage to the inferior nasal meatus
valve of hasner
the space at the lateral wall between the sphenoid above and the superior choncha below, the opening the sphenoidal sinus
sphenoethmoidal recess
this opens to the nasopharynx at the level of the inferior meatus, equalize with the atmospheric air pressure
auditory tube
The only structure NOT to empty out onto the lateral walls of the nasal cavity
sphenoid [Above this you can fine the hypophyseal fossa
(pituitary gland)]
Lateral wall opposite the 2nd molar tooth
parotid gland ( stensen’s duct)
term for the joint of the teeth
gomphosis (etymology: to fasten, bolt together)
What supplies the anterior 2/3 of the palatine /presulcal part?
vagus nerve CN X
what supplies the posterior 1/3 of the parangeal/ postsulcal?
glossopharyngeal CN IX
Remnant of this duct is FORAMEN CECUM
Thyroglossal duct cyst [persistence of thyroglossal duct through which embryonic thyroid gland descends from base of tongue]
what gland has the stensens duct and ceosses the masseter muscle and pierces the buccinators and goes to the upper 2nd molar tooth
parotid gland
superficial and deep, whartons duct is found here
submandibular gland
has 18-20 ducts, ducts of rivunu’s and bartholin’s ducts are found here
sublingual
contains the wharton’s duct and bartholin’s duct
sublingual papillae
The vagus nerve has how many branches?
6 (MAPSCR)
all muscles of the tongue is supplied by fibers of pharyngeal plexus (CN X - vagus nerve) EXCEPT FOR
Stylopharyngeus = CN XII, glossopharyngeal nerve (mnemonics: STYlish GLOSS)
Recurrent laryngeal nerve will supply all the larynx muscles EXCEPT
cricothyroid (supplied by the external laryngeal n.)
veins of the pharynx drain to the
pharyngeal venous plexus
Pharyngeal venous plexus drains into the
IJV (internal jugular vein)
