Diencephalon.ppt

《Diencephalon.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Diencephalon间脑神经系统nervoussystemPositionPosition:Liesbetweenmidbrianandcerebrum,almostentirelysurroundedbycerebralhemisphereSubdivisionDorsalthalamus背侧丘脑Metathalamus后丘脑Epithalamus上丘脑Subthalamus底丘脑Hypothalamus下丘脑Dorsalthalamus背侧丘脑ExternalfeaturesAlargee

2、gg-shapednucleusmass,Anteriorendcalledanteriorthalamictubercle(丘脑前结节)Posteriorendcalledpulvinar(丘脑枕)Rightandleftportionofthalamusarejoinedbyinterthalamicadhesion(丘脑间粘合)Floor－hypothalamicsulcus(下丘脑沟)ClassificationofnucleiofdorsalthalamusThreenucleargro

3、up－dividedbyinternalmedullarylamina（内髓板）Anteriornucleargroup前核群Medialnucleargroup内侧核群Lateralnucleargroup外侧核群Med.nucleargroupAnt.nucleargroupDorsaltierinternalmedullarylaminaVentralanteriornucleusVentralintermediatenucleusVentralposterolateralnucleus(V

4、PL)Ventralposteromedialnucleus(VPM)PulvinarMedialgeniculatebody(MGN)Lateralgeniculatebody(LGN)Ventralposteriornucleus(VP)SubdivisionPrincipalNucleiCommonabbreviationAnt.nucleargroupMed.nucleargroupLat.nucleargroupDorsaltierLateraldorsalLDLateralposter

5、iorLPPulvinarVentraltierVentralanteriornucleusVAVentralintermediatenucleusVIVentralposteriornucleusVPVentralposterolateralnucleusVPLVentralposteromedialnucleusVPMFunctionalsubdivisionNonspecificrelaynuclei非特异性投射核团（古丘脑）－receiveafferentsfromrhinencephal

6、onandreticularformationofbrainstem,projectmainlytohypothalamusandcorpusstriatumMidlinenucleusgroup中线核(第3脑室侧壁内)Intralaminarnucleargroup板内核Thalamicreticularnucleus网状核(丘脑与内囊间)Associationnuclei联络核团（新丘脑）－receiveextensiveafferentsandinturnprojectwidelytothe

7、associationareasofcerebralcortexAnteriornucleargroup前核群Medialnucleargroup内侧核群Dorsaltieroflateralnucleargroup外侧核群背层与下丘脑、边缘系统有往返纤维联系，在功能上进入高级活动领域，具有情感意识的辨别能力，还参与学习和记忆。Specialrelaynuclei特异性中继核团（旧丘脑）Vent.anteriornucleus(VA)腹前核Vent.intermediatenucleus(VI)腹

8、中间核Receivingdentatenucleus,globuspallidusandsubstantianigratomotorcortexVent.posteromedialnucleus(VPM)腹后内侧核－receivestrigeminallemniscusandtestefibersVent.posterolateralnucleus(VPL)腹后外侧核－receivesmediallemniscusandspinallemniscusProjectstofirsts