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ID:48422642
大小:4.67 MB
页数:31页
时间:2020-01-19
《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
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