組織胚胎學(xué)-神經(jīng)組織-課件

組織胚胎學(xué)課件

1ppt課件第七章神經(jīng)組織2ppt課件3ppt課件組成：神經(jīng)C=神經(jīng)元神經(jīng)膠質(zhì)C4ppt課件結(jié)構(gòu)

=胞體+突起一、神經(jīng)元5ppt課件胞體樹突軸突終末膠質(zhì)C6ppt課件脊髓前角多極神經(jīng)元（CLSM)7ppt課件頸上神經(jīng)節(jié)神經(jīng)元（CLSM)8ppt課件多極神經(jīng)元MultipolarneuronMultipolarneuron多極神經(jīng)元9ppt課件肌間神經(jīng)叢低倍(銀染)肌間神經(jīng)叢高倍(銀染)10ppt課件脊髓前角多極神經(jīng)元

(低倍)Multipolarneuron（HE)脊髓前角多極神經(jīng)元(高倍）Multipolarneuron（HE)11ppt課件細(xì)胞核:核大色淺,核膜核仁明顯.細(xì)胞質(zhì):

LM: EM:

@@尼氏體 rER

和游離核糖體

@@神經(jīng)原纖維 神經(jīng)絲和微管 脂褐素 色素顆粒和脂滴 -細(xì)胞膜:可興奮膜,可傳導(dǎo)沖動(dòng).（1）神經(jīng)元胞體

12ppt課件尼氏體(HE)Nisslbody神經(jīng)原纖維(銀染)Neurofibrils13ppt課件神經(jīng)元(電鏡）Neuron

尼氏體(電鏡）NeuronNisslbody

14ppt課件尼氏體

=

粗面內(nèi)質(zhì)網(wǎng)＋游離核糖體VERYIMPORTANT15ppt課件樹突: 與胞體結(jié)構(gòu)相似,

可見大量樹突棘.軸突: 一個(gè),細(xì),均,末梢分支多.

無尼氏體.（2）神經(jīng)元突起

16ppt課件軸突運(yùn)輸17ppt課件雙極假單極多極2.分類118ppt課件2.分類2運(yùn)動(dòng)神經(jīng)元感覺…中間…交感…19ppt課件肌組織---名詞解釋

1.肌節(jié)

2.三聯(lián)體

3.閏盤20ppt課件###3.

突觸(synapse)何為突觸？神經(jīng)元與神經(jīng)元之間,或與效應(yīng)C之間傳遞信息的部位.21ppt課件22ppt課件化學(xué)性突觸突觸前成分突觸小泡:神經(jīng)遞質(zhì).突觸前膜:突觸間隙:突觸后成分:.突觸后膜

.有受體和離子通道.23ppt課件突觸高倍（銀染）Synapse突觸高倍（電鏡）Synapse24ppt課件

電突觸:縫隙連接.25ppt課件二、神經(jīng)膠質(zhì)C

(Neuroglia)中樞神經(jīng)膠質(zhì)C星形膠質(zhì)C:分泌神經(jīng)營養(yǎng)因子纖維性…:位于白質(zhì).原漿性…:位于灰質(zhì).26ppt課件小膠質(zhì)C:可轉(zhuǎn)變?yōu)榫奘杉?xì)胞.少突膠質(zhì)C:CNS的髓鞘形成細(xì)胞.室管膜C:27ppt課件特點(diǎn):胞突直而長(zhǎng),分支少,膠質(zhì)絲豐富.特點(diǎn):胞突粗,分支多,膠質(zhì)絲少.

28ppt課件29ppt課件星形膠質(zhì)細(xì)胞形成的毛細(xì)血管的腳板（特染）Vascularfootprocessesfromastrocytes30ppt課件小膠質(zhì)細(xì)胞特點(diǎn):胞體細(xì)長(zhǎng)或橢圓,核小而深,突起細(xì)長(zhǎng)有分支和棘突.31ppt課件特點(diǎn):胞體較小,核小而致密,胞突少.

特點(diǎn):單層上皮.室管膜細(xì)胞32ppt課件問題：CNS的神經(jīng)膠質(zhì)細(xì)胞包括哪些種類？33ppt課件PNS神經(jīng)膠質(zhì)C施萬C:PNS的髓鞘形成細(xì)胞.分泌神經(jīng)營養(yǎng)因子.衛(wèi)星C:34ppt課件35ppt課件脊髓神經(jīng)節(jié)衛(wèi)星細(xì)胞（HE）Satellitecellssurroundingaspinalganglioncell.

36ppt課件三、神經(jīng)f和神經(jīng)神經(jīng)f:長(zhǎng)軸突和神經(jīng)膠質(zhì)C構(gòu)成.有髓神經(jīng)f:PNS:施萬C.CNS:少突膠質(zhì)C.無髓神經(jīng)f:37ppt課件神經(jīng):38ppt課件有髓神經(jīng)纖維

(HE)Myelinatednervefibres有髓神經(jīng)纖維高倍(HE)Myelinatednervefibres39ppt課件有髓神經(jīng)纖維縱斷(低倍)Myelinatednervefibres有髓神經(jīng)纖維縱斷(特染)Myelinatednervefibres郎飛結(jié)40ppt課件有髓神經(jīng)纖維Myelinatednervefibres無髓神經(jīng)纖維Nonmyelinatednervefibres41ppt課件Myelinatenervefiberforming有髓神經(jīng)纖維形成示意圖無髓神經(jīng)纖維形成示意圖Nonmyelinatednervefiberforming42ppt課件43ppt課件四、神經(jīng)末梢

(Nerveending)1.感覺神經(jīng)末梢

游離神經(jīng)末梢

觸覺小體環(huán)層小體肌梭

44ppt課件45ppt課件2.運(yùn)動(dòng)神經(jīng)末梢

軀體運(yùn)動(dòng)神經(jīng)末梢:運(yùn)動(dòng)終板

內(nèi)臟運(yùn)動(dòng)神經(jīng)末梢:膨體

46ppt課件47ppt課件運(yùn)動(dòng)終板電鏡圖Motorendingplate48ppt課件填空神經(jīng)組織是由___和____組成.尼氏體神經(jīng)元胞質(zhì)內(nèi)的嗜____性物質(zhì),電鏡下是由發(fā)達(dá)的____和____組成.神經(jīng)元損傷時(shí),尼氏體數(shù)量____,損傷修復(fù)時(shí),尼氏體數(shù)量____,因此,尼氏體的形態(tài)結(jié)構(gòu)可作為判斷