消化系统解剖英文版

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1、VanDeGraaff:HumanVI.Maintenanceofthe18.DigestiveSystem©TheMcGraw−HillAnatomy,SixthEditionBodyCompanies,200118DigestiveSystemIntroductiontotheDigestiveSystem635SerousMembranesandTunicsoftheGastrointestinalTract636Mouth,Pharynx,andAssociatedStructures640EsophagusandSto

2、mach648SmallIntestine652LargeIntestine656Liver,Gallbladder,andPancreas660DevelopmentalExposition:TheDigestiveSystem665CLINICALCONSIDERATIONS669ClinicalCaseStudyAnswer671ImportantClinicalTerminology672ChapterSummary673ReviewActivities674ClinicalCaseStudyA25-year-oldma

3、leconstructionworkerwasadmittedtotheemergencyroomaftersufferingablowtotheupperabdomenfromaswingingbeam.Initialassessmentwassignificantformarkedtendernessintherightupperquadrantoftheabdomenandforvitalsignsandexaminationfindingsconsistentwithmildhemorrhagicshock.Intrav

4、enousfluidswereadministered,causingstabilizationofvitalsigns.Achestradiographrevealednoabnormalities.Peritoneallavage(seechapter2,ClinicalCaseStudy)waslikewisenegativeforblood.Therewerenoexternallyde-tectablesignsofhemorrhage.ACTscandemonstratedasignificanthematoma(c

5、ollectionofblood)deepwithinthesubstanceoftheliver(seearrowonCTscan),aswellasanotableamountofbloodinthesmallintestine.Thedecisionwasmadetooperate.Initialexplorationrevealednotraumatothestomachorsmallintestine.Whatisthelikelysourceofthebleeding?Explainanatomicallyhowth

6、ebloodfounditswayintothesmallintestine,notingeachstepofitspath.Giventhatthehepaticarterialsystemandhepaticvenoussystemarepossiblesourcesofthebleeding,isthereanothersystemofbloodvesselsrelativetotheliverthatcouldalsobeasourceofhemorrhage?FIGURE:Positionedintheupperrig

7、htquadrantoftheabdominalcavity,theliverisHint:Asyoustudythedigestivesystem,paycloseattentiontothelocationofeachaccessorythelargestvisceralorgan.Itssizeanddensitydigestiveorganandnotehoweachconnectstothelumenofthegastrointestinal(GI)tract.makeitvulnerabletotrauma.VanD

8、eGraaff:HumanVI.Maintenanceofthe18.DigestiveSystem©TheMcGraw−HillAnatomy,SixthEditionBodyCompanies,2001Chapter18DigestiveSystem635I