Cartilaginous part1.Upperlateralcartilaginous2.Lowerlateralcartilages3.Lesseralarcartilages.4.Septal cartilage
Cartilaginous part 1.Upper lateral cartilaginous 2. Lower lateral cartilages 3. Lesser alar cartilages. 4. Septal cartilage ① ② ④ ③
Features of nasal skinThin and loose insuperior partThick and tight ininferior partMany glandAcneRosaceaNasalfurunclePain
Features of nasal skin ❖ Thin and loose in superior part ❖ Thick and tight in inferior part ❖ Many gland ❖ Acne ❖ Rosacea ❖ Nasal furuncle ❖ Pain ❖
Features of vein in external noseNo valve of veintwo-way flowangular veinvena facialisanteriorcommonfacial vein√internal carotid veinangular veinsuperiorinferiorophthalmicvein>cavernous sinus
Features of vein in external nose ❖ No valve of vein ❖ two-way flow ❖ angular veinvena facialis anteriorcommon facial vein internal carotid vein ❖ angular vein superior， inferior ophthalmic vein cavernous sinus
InternalnasalIt is divided into right and left nasal cavitiesbynasalseptum.Eachnasalcavityconsistsof a skin-linedportion-thevestibule,anda mucosa-lined portionthenasalproper
Internal nasal It is divided into right and left nasal cavities by nasal septum. Each nasal cavity consists of a skin-lined portion –the vestibule, and a mucosa –lined portion, the nasal proper
Nasal cavityLateralNasalWallOpeningofsphenoidal sinusanterior narisSphenoethmoidal recessHypophysis(pituitanSuperiornasalmeatyusglanoinsellaturcicSphenoidaposterior narissinusPharyngealFrontal sinustonsilnasal septum(adenoidifSuperiornasalentarged)concha (turbinate)BasilarpartoflimennasiAggernasi.occipitalboneAtrumofmiddienasalPharyngotasilarfasciaNasal CavityNasopharySpeculm VieLimen-ngealVestibuleopeningTorusMiddlenasaltubariusconcha(urbinate)PharyngeaMiddlenasalmeatusrecessInferiornasalconcha (turbinate)Horizontal plateSotpalateOpeningofIncisive canalTongueauditoyofpalatinebonePalatineprocessofmaxillsInferiornasalmeatusCHS-GEIEY
Nasal cavity ❖ anterior naris ❖ posterior naris ❖ nasal septum ❖ limen nasi