资源描述：
《(医学保健)胰腺疾病》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、精品PPT课件浏览免费下载后可以编辑修改。http://www.docin.com/jn-lxhhttp://www.doc88.com/lianer2012http://www.baidu.com/http://www.google.com/http://www.sogou.com/医学精品课件最权威的课件资料，免费在线阅读分享，下载后可以编辑修改。Pancreas胰腺疾病DepartmentofSurgeryMaQingyongAnatomyThepancreaslieswithintheretroperitoneum
2、intheupperabdomen,lyinginfrontofthesecondlumbervertebraandendinginthesplenichilum.Theglandcanbedividedintofourportions-head,neck,body,andtail.uncinateprocessAnatomyThemainpancreaticduct(theductofWirsung,2~3mmindiameter)coursesalongtheglandfromthetailtotheheadandjo
3、insthecommonbileductjustbeforeenteringtheduodenumattheampullaofVater(85%).Theaccessorypancreaticduct(theductofSantorini)enterstheduodenum2~2.5cmproximaltotheVater.theductofWirsungSantoriniampullaofVateruncinateprocessAnatomyBloodsupplyThesuperiorpancreaticoduodena
4、larteryarisesfromthegastroduedenalartery,runsparalleltotheduodenum,andeventuallymeetstheinferiorpancreaticoduodenalartery,abranchofthesuperiormesentericartery,toformanarcade.Thesplenicarteryprovidestributariesthatsupplythebodyandtailofthepancreas.pancreaticmagnaAs
5、uperiormesentericarterysplenicarteryarcadesuperiorpancreaticoduodenalarteryinferiorpancreaticoduodenalarterydorsalpancreaticApancreaticmagnaAsuperiormesentericVPhysiologyExocrineFunctionTheexternalsecretionconsistsofaclear,alkaline(pH7.0~8.3)solutionof750~1000ml/d
6、containingdigestiveenzymes.Secretionisstimulatedbythehormonessecretinandcholecystokinin(CCK)andbyparasympatheticvagaldischarge.SecretinandCCKaresynthesized,store,andreleasedfromduodenalmucosalcellsinresponsetospecificstimuli.Acidinthelumenoftheduodenumcausestherel
7、easeofsecretin,andluminaldigestionproductsoffatandproteincausethereleaseofCCK.PhysiologyExocrineFunctionenzymessynthesized,stored(aszymogengranules),andreleasedbytheacinarcellsofthegland,inresponsetoCCKandvagalstinulation.Pancreaticenzymesareproteolytic,lipolytic,
8、andemylolytic.Lipaseandamylasearestoredandsecretedinactiveforms.Theprolyticenzymesaresecretedasinactiveprecursorsandactivatedbytheduodenalenzymeenteroki
