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1、IntestineDiseasesSunLiboChina-JapanUnionHospitalReviewofAnatomyandPhysiologyI.SmallIntestineMacroscopicanatomyTreitzileocecalvalve.2/5jejunum,3/5ileumMesentery:fat,bloodvessels,lymphatics,andnerves.superiormesenteryarteryandveinMicroscopicanatomy4layers:mucosa,submucosa,mus
2、cularis,andserosa.Physiologyofthesmallintestine1.Digestiondigestsandabsorbsnutrientsfromingestedfood.2.SecretionAlkalinemucusandsomegastroenteralhormones3.MotilityThemovementiscomposedofsegmentalcontractionandperistalsis(short,weak,propulsive)II.LargeIntestineMacroscopicana
3、tomy1.5mlong,endofileumrectum..Rightcolon:cecum,ascendingcolon,hepaticflexure,andproximaltransversecolonLeftcolon:thedistaltransversecolon,splenicflexure,descendingcolon,andsigmoidcolon.Bloodsupply:Superiormesenteryarterytherightcolon.Inferiormesenteryarterytheleftcolon.Mic
4、roscopicanatomy4layers:mucosa,submucosa,muscularis,andserosa.Physiologyoflargeintestine1.Digestionelectrolytesandwaterfromtheilealfluid2.SecretionAlkalinemucusandsomegastroenteralhormones3.MotilityRetrogradeperistalsis(dominatesintherightcolon)Segmentalcontraction(inthetran
5、sverseanddescendingcolon)Massmovement(astrongringcontractionoverlongdistanceinthetransverseanddescendingcolon)MajorContentsInflammatoryboweldiseases[IBD]IntestineObstructionVascularlesionsofmesenteryShortbowelsyndromePolypsTumorCongenitaldiseasesInflammatoryboweldiseases[IB
6、D]1)intestinetuberculosis2)typhoidperforation3)amoebicperforation4)nonspecificinflammatorydiseases(Crohn’sDiseases,ulcerativecolitis)Surgicalinterventionperforation,obstruction,orhemorrhage(bleeding)Vascularlesionsofmesentery(vascularocclusionorischemia)Mesentricarterialem
7、bolismorthrombosiscardiacdiseasesMesentericvenousthrombosisHepaticcirrhosisandhaemaldiseasesCharacter---symptomsevere,signlightDiagnosis---angiographyTreatment---operationShortbowelsyndromeEtiologyintestineresectionnotlongenough(<100cm)digestiveandabsorptiondisfunctionTreat
8、ment1)nutritionsupport(TPN)1~2yearhalfcompensationrecover2)intestinetransplantatio