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1、最新Nervoustissue神经组织解剖-药学医学精品资料Thecontentoftheclass1.videorecording:录像nervoustissue神经组织2.Observingslides:玻片观察(1)multipolarneuron多极神经元HENO.25(2)neurofibril神经原纤维SilverstainingNO.26(3)myelinatednerve有髓神经纤维HENO.27-1,-2(4)tactilecorpuscle触觉小体HENO.91(5)Lamellacorpuscle环层小体HENO.91(6)spina
2、lganglia.脊神经节HE24号1.multipolarneuron多极神经元HENO.25LowporwerofSpinalcord脊髓Graymatter灰质Whitematter白质Thisspecimenisellipticinshape.InthecenterofitthereisanHshapedstructure,thegraymatter,staineddeeply.Thethickerhornsareanteriorhorns.样本椭圆形，中央深染的H形结构即为灰质。前角比较宽。Anteriorhorns前角Posteriorhorn
3、后角NeuroncontainsabundantGolgicomplexesandNisslbodies,indicatingactivesynthesis.神经元里有丰富的高尔基复合体及尼氏体,表明合成活跃。Nisslbody：RERFreeribosomeNeurofibrilscanbefoundinneuronswhentheyareimpregnatedwithsilver.Withlowmagnification,examinetheanteriorofthespinalcord,toidentifythegiantyelloworbrownm
4、ultipolarneurons.Thenshifttohighpower.TheneurofibrilformadenseNetworkintheperikaryon.Butintheprocessestheyrunparalleltoeachother.2.Neurofibrils神经原纤维(silverstaining,NO.26)Neurofibrils高倍镜40*：浸银染色条件下，神经元里可以看到神经原纤维，棕褐色，细丝状。在低倍镜下，辨认脊髓前角和后角，可见前角有许多体积较大的棕色多级神经元。再转到高倍镜下观察，神经原纤维在核周体交织成网，但在
5、突起内则平行排列。2.Neurofibrils神经原纤维(silverstaining,NO.26)Darkandbutton-likesynapticbodiescanbefoundonthebodyanddendriteofneurons.(synapse)Highpower(40Χ)高倍镜40*：扣结样深染的突触小体在胞体和树突上清晰可见。Synapse:presynapticelement(containsneuronfilaments,synapticvesicles,mitochondria),synapticcleft,postsynapti
6、celement(receptorsandionschannels)突触：突触前成分（含有神经丝，突触小泡，线粒体），突触间隙，突触后成分（有受体和离子通道）。3.myelinatednervefiber有髓神经纤维(HE,NO.27-1,27-2)Crosssectionofsciaticnerve坐骨神经横切面HE,LowpowerLongitudinalsectionofsciaticnerve坐骨神经纵切面HE,Lowpower(nervebundle)(nervebundle)(Nerve)epineurium(Perineurium)(epin
7、eurium)Highpower(40Χ):Longitudinalsectionofmyelinatednervefibers(Myelinsheath)(NodeofRanvier)(axon)(nucleusofShchwann’scell)Axon:appearsasathreadshaped,centrallylocatedstructure,stainedinpurple-redcolor.Myelinsheath:envelopestheaxon,stainedinlightredcolororpresentingafoamyappearan
8、ce.ThenucleusofShchwann’scell:ise
