MouthPharynxEsophagusStomachDuodenumJejunumIleumLargeintestineLiverPancreasMajorsalivaryglandsAlimentarySystemAnusPharynxPharynx•GeneralfeaturesGeneralfeatures–Afibromusculartube,partofAfibromusculartube,partofdigestiveandrespiratorysystemsdigestiveandrespiratorysystems–ExtendsfrombaseofskulltotheExtendsfrombaseofskulltotheinferiorborderofcricoidcartilageinferiorborderofcricoidcartilage(lowerborderofC(lowerborderofC66levellevel))•ThreesegmentsThreesegments–NasopharynxNasopharynx–OropharynxOropharynx–LaryngopharynxLaryngopharynxPharynxNasopharynxNasopharynx•PositionPosition–PosteriortonasalcavitiesPosteriortonasalcavities–ExtendsfromthebaseofskulltothelevelExtendsfromthebaseofskulltotheleveloffreeborderofpalatinevelumoffreeborderofpalatinevelum•FeaturesFeatures–PharyngealopeningofauditorytubePharyngealopeningofauditorytube–TubaltorusTubaltorus–PharyngealrecessPharyngealrecess–TubaltonsilTubaltonsil–PharyngealtonsilPharyngealtonsilPharynxOropharynxOropharynx•PositionPosition–PosteriortooralcavityPosteriortooralcavity–ExtendsfromfreeborderofExtendsfromfreeborderofpalatinevelumtothelevelofpalatinevelumtothelevelofupperborderofepiglottisupperborderofepiglottis•FeaturesFeatures–MedianglossoepiglotticfoldMedianglossoepiglotticfold–EpiglotticvalleculaEpiglotticvallecula–PalatinetonsilPalatinetonsil•LieswithintonsillarfossaLieswithintonsillarfossaTTonsillitisonsillitisTonsilinflammationTonsilinflammationPharynxLaryngopharynx•Position–Posteriortolarynx–ExtendsfromupperborderofepiglottistotheleveloflowerborderofC6•Piriformrecess–Adeepdepressiononeachsideofapertureoflarynx–commonsideforlodgementofforeignbodies(forexample,fishbones)PharynxPharynxLymphaticringofpharynxLymphaticringofpharynx•FormingFormingacircularbandacircularbandofoflymphoidtissueatoropharyngeallymphoidtissueatoropharyngealisthmuisthmu•ConsistsofConsistsof–PharyngealtonsilPharyngealtonsil–tubaltonsiltubaltonsil–PalatinetonsilPalatinetonsil–lingualtonsillingualtonsilEsophagu...
