颅脑的横断层解剖(上)断层解剖学精品

《颅脑的横断层解剖(上)断层解剖学精品》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、ThemedicalcollegeofshandonguniversityThetransversesectionofcraniumandMRIThebasicknowledgeofcranialanatomyThebrainTelencephalonDiencephalonCerebellumBrainstemThebrainstemConsistsofMidbrainPonsMedullaoblongataMedullaoblongataVentralsurfacePyramid:containcort

2、icospinaltractDecussationofpyramid:formedbycrossingfibersofcorticospinaltractOlive:producedbyunderlyinginf.olivarynucleusAnterolateralsulcus:rootletsofhypoglossalN.Retroolivarysulcus:rootletsofglossopharyngealN.vagusN.accessoryN.MedullaoblongataDorsalsurfa

3、ceGraciletubercle:producedbyunderlyinggracilenucleusCuneatetubercle:marksthesiteofcuneatenucleusInf.cerebellarpeduncleObexPonsVentralsurfaceBasilarpartBasilarsulcusBulbopontinesulcus:AbducentN.facialN.vestibulocochlearN.MiddlecerebellarpeduncleTrigeminalN.

4、Pontocerebellartrigone:thejunctionofmedulla,ponsandcerebellumPonsDorsalsurfaceSup.cerebellarpeduncleSup.medullaryvelumTrochlearN.MidbrainVentralsurfaceCruscerebriInterpeduncularfossaOculomotorN.emergefrommedialofcruscerebriPos.perforatedsubstanceMidbrainDo

5、rsalsurfaceSup.colliculusvisualreflexesInf.colliculusassociatedwithauditorypathwayBrachiumofsup.colliculiBrachiumofinf.colliculiThecharactersofinternalstructureofbrainstemMedullaoblongataLowerpart(closedpart):TwodecussationsDecussationsofpyramidDecussati

6、onsofmediallemniscusMedullaoblongataUpperpart(openpart)Appearance:inf.olivarynuculeusinf.cerebellarpeduncleEnlargementofcentralcanaltoformthe4thventriclefloorPonsTegmentumofponsdirectedupwardcontinuationofmedullaoblongataBasilarpartcontainbothlongitudinala

7、ndtransversefibersintermixedwithpontinenucleiMidbrainRectumofmidbrain:includessup.andinf.colliculiCerebralpeduncleTegmentum:containascendingtracts,centralgraymatter,recticularformationandsoonSubstentianigraCruscerebri:Pyramidaltract－middle3/5ofthecrus:Fron

8、topontinetractmedialmedial1/5:pariatotempopontinetractlateral1/5ThebasilarisofbrainThebasilarisofbrainspecimenThebasilarisofbrainspecimenThetransversesectionthroughopticchiasmaThetransversescanofMRIthroughopt