3.Muscular coatItconsistoftwolayersofmuscleswiththree muscles in eachlayerExternallayer:contains superior,middleandinferiorconstrictormusclesInternal layer:contains2.stylopharyngeus,salpingopharyngeusandpalatoparyngeusmuscles
3. Muscular coat It consist of two layers of muscles with three muscles in each layer 1. External layer: contains superior, middle and inferior constrictor muscles. 2. Internal layer: contains stylopharyngeus, salpingopharyngeus and palatoparyngeus muscles
4.Buccopharyngeal fasciaCoversoutersurfaceofconstrictormuscles.Abovethe upperborderof superiorconstrictor,itblendswithpharyngealaponeurosis
4. Buccopharyngeal fascia Covers outer surface of constrictor muscles. Above the upper border of superior constrictor, it blends with pharyngeal aponeurosis
Pharynx:median sectionPharynx:Median SectionNasopharynxOropharynxPhugreadcpeingdphannympkSup.,mid..inf.arSitekcaLaryngopharynxmeatusFrontlsinuSpbenooccipital synchondrosisSphenoidal sinPharyngeul tonileNaalsehumhnusoedocpatborePhuryngealrapheNasophaymxnteriorlongitudnal EigamentSup.n.cSotpuiserioradantooccipitalmembraneniaesdnchApical SigamestdfdenMiddlenasalconchaHindpaeAriiranhOralcavitydachciiecandvehebora)MoeInferornasalconchaDosdaiBodydsrgeC2venevOropharynxnaForamen cecumHardpalatetiguiustIncisiveGeriogkoonSoftpalateEOnmephunngrdcanalfasciaSatdgeUvulaMaxillaRidrEpigloisphaynpaceMundiblePevesbxaCeniohyoldmuckeindaandrariHyoid boneLingualtonsilsbplchHyoepiglonic ligumentThyrohyoidmembangboateaEpiglottisLaryngopharynIaryngral inletadtueMandibleThyroidcaitilageVocal foldGenioglossusm.Transvene arytonoid mncleCaudcadkgVocalfoldTracheThyroidEsophaguMylohyoid m.cart.fsophgrilmslesGeniohyoidm.ThyroidglandCricoidHyoid boneheinglyuddutonucartPreeracheal fasciaHyoepigloticligSupastenalspactManubriumof stemur
Pharynx: median section
PharynxNasopharynxRegionsofPharynx*OropharynxNasopharynxOropharynxlaryngopharynxLaryngopharynx
Pharynx Nasopharynx Oropharynx laryngopharynx
1.nasopharynx openingintothenasalcavity2.oropharynx opening intotheoralcavity3.laryngopharynxopeningintolarynx
1. nasopharynx opening into the nasal cavity 2. oropharynx opening into the oral cavity 3. laryngopharynx opening into larynx