Nasal cavity Flashcards
external nose skeletal structures (6)
frontal bone, nasal bones, frontal process of maxilla, lateral cartilage, septal cartilage, alar cartilage
nasal cavity lateral boundaries (8)
frontal bone, nasal bone, ethmoid bone, sphenoid bone, lacrimal bone, inferior concha, palatine bone, maxilla
nasal cavity medial boundaries (4)
septal cartilage, ethmoid bone, posterior nare, vomer
ethmoid bone features (3)
crista gali, cribiform plate, near brain meninges
bad nose breaks can cause (3)
infection, bleeds, rhinorrhea
where does the olfactory bulb sit
on cribiform plate
what does the olfactory bulb connect to
olfactory nerve CNI
what is the superior part of the nasal cavity
olfactory area
what is aa feature of the nasal mucous membrane
highly vascular
what divides the nose
nasal septum
what is the inferior area of the nasal cavity
respiratory area
what is located in the vestibule (2)
skin and hair
what feature is located on the lateral nasal wall
turbinates
what are the turbinates (3)
superior concha, middle concha, inferior concha
what are below each concha from superior to inferior (3)
superior meatus, middle meatus, inferior meatus
what is located in the meatuses
openings for paranasal sinuses
what are the paranasal sinuses(4)
ethmoid, frontal, sphenoid, maxillary
which paranasal sinus can be used to retrieve fractured tooth roots
maxillary
superior nerve
ethmoidal nerve CNV1
where does the ethmoidal nerve stem from
trigeminal nerve
what nerve supplies maxillary paranasal sinus
superior alveolar nerves CNV2
openings in the superior meatus (2)
sphenoethmoidal recess for sphenoidal sinus and posterior ethmoidal air cells
openings in the middle meatus (5)
middle ethmoidal cells, frontal sinus and anterior ethmoidal air cells, hiatus semilunaris, bulla ethmoidalis, maxillary sinus
duct for the frontal sinus
frontonasal duct
lacrimal anatomy (4)
lacrimal gland, lacrimal sac, nasolacrimal duct, orifice of the nasolacrimal duct
where is the orifice for the nasolacrrimal duct located
inferior meatus
nose bleeds
epistaxis
veins supplying the nasal cavity
submucosal plexus
submucosal plexus is drained by which veins (3)
opthalamic, sphenopalatine, facial
common carotid artery splits into (2)
internal and external carotid arteries
external common carotid artery splits into (3)
anterior and posterior ethmoidal arteries, lateral nasal branches of facial artery, sphenopalatine artery
what arteries supply above the teeth
greater palatine artery
anterior and posterior ethmoidal arteries branch from
opthalamic artery
what are present on the medial wall of the nasal cavity
arterial anastamoses
what artery supplies above the lip
superior labial artery
what nerve supplies hte anterior nasal cavity
branches of the ethmoidal nerve V1 nasociliary trigeminal opthalamic branch
what nerve supplies the posterior nasal cavity
branches of the greater and lesser palatine nerves from the V2 trigeminal maxilllary branch
palatine nerves go through which ganglion
pterygopalatine
what lies superior to the cribiform plate
olfactory bulb
what supplies the superior nasal cavity
olfactory nerves of the olfactory epithelium
nerves on the posterior medial wall
nasopalatine nerve V2 trigeminal nerve maxillary branch
