S2LE041of17Dr. Rene R. Aquende| January 18, 2019NASAL & ORAL CAVITIES, PARANASAL SINUSES & PHARYNXGROSS HUMAN STRUCTURAL BIOLOGY2ndSEMRianne M. Malabanan, RMTTRANSCRIBERSJessa Mae P. Manibog, RMTOUTLINELegend:Remember(Exams)LecturerBookNice toKnowLectureGuideNoteI. NOSEExternal nose–right ½Nasal septumNasal cavity–left 1/2II. THE EXTERNAL NOSEWith 2 elliptical aperture (openings)oNostrilsNasal septum- medialAla nasi- lateraloLateral marginoRound/mobileFormed by the root, bridge or dorsum, a free tip or apexand 2 inferior opening callednostrils or anteriornaresthat are bounded laterally by thealae& mediallyby thenasal septumSupported bynasal, nasal part of frontal & frontalprocess of maxillary bonesat the upper part andseveral cartilages (hyaline cartilage)at the lowerpart.If you removed these, you will see thePiriformapertureIn a dried skull, the continuous free margin of the nasalbone and frontal process of maxilla forming theopening for the nasal cavity is called thepiriformapertureoPag sinilip mo yan, you can also see theVomer, middle & inferior conchaeEXCEPTsuperior dahil mataas na yunA.Blood supply of External NoseoBranches of Ophthalmic artery & Maxillaryartery–supplies the skin of the external noseoSeptal branches of Facial artery–derivedfrom external carotid artery; has branchesthat supply the lower septum & alar cartilagesAngular arteryLateral nasal arteryB.Venous Drainage of External NoseoAngular vein–it has connection withophthalmic vein kaya pwede magkaron ngcavernous sinus thrombosisoFacial veinoOphthalmic veinC.Nerve Supply of External NoseoSensory supply:By branches of ophthalmic andmaxillary division of trigeminalInfra trochlear branch–skin of rootand adjacent sides of noseInfra orbital, external nasal nerve–skin of lower half of noseTerminal branches of palatinenerves–skin of base of columellaI.NOSEII.EXTERNAL NOSEA.Blood supply of External noseB.Venous drainage of External noseC.Nerve supply of External noseIII.INTERNAL NOSEA.Nasal vestibuleB.Nasal cavity properIV.SINUSESV.MOUTH/ORAL CAVITYA.Oral vestibuleB.Oral cavity properVI.PHARYNXA.Attachments of PharynxB.Pharyngeal wallC.Pharyngeal musclesD.Divisions of PharynxE.Sensory Innervation of PharynxF.Blood supply of PharynxG.Venous drainage of PharynxH.Lymphatic drainage of Pharynx
