资源描述:
《《n脑神经》ppt课件》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、DepartmentofAnatomy,QingdaoUniversityMedicalCollegeW.S.B2006.12.3PartFiveTheNervousSystemPeripheralNervousSection2TheCranialNervesTheCranialNerves(脑神经)IntroductionI.Olfactoryn.(嗅神经)II.Opticn.(视神经)III.Oculomotorn.(动眼神经)IV.Trochlearn.(滑车神经)V.Trigeminaln.(三叉神经)VI.Abducen
2、tn.(展神经)TheCranialNervesIntroductionVII.Facialn.(面神经)VIII.Vestibulocochlearn.(前庭蜗神经)(位听神经)IX.Glossopharyngealn.(舌咽神经)X.Vagusn.(迷走神经)XI.Accessoryn.(副神经)XII.Hypoglossaln.(舌下神经)一嗅二视三动眼,四滑五叉六外展,七面八听九舌咽,迷副舌下十二全。A.ClassificationoftheCranialNerves1.Sensorynerves(感觉神经):I,II,V
3、III.2.Motornerves(运动神经):III,IV,VI,XI,XII.3.Mixednerves(混合神经):V,VII,IX,X.TheCranialNervesIntroductionB.ComponentsoftheCranialNerves1.Sensory(afferent)fibers[感觉(传入)纤维]1)generalsomaticsensoryfiber(GSA)(一般躯体感觉纤维):skinnerveendings(皮肤神经末稍)musclespindles(肌梭)2)specialsomatics
4、ensoryfiber(SSA)(特殊躯体感觉纤维):visual(视),hearing(听),balanceorgans(平衡)TheCranialNervesIntroduction3)generalvisceralsensoryfiber(GVA)(一般内脏感觉纤维):allviscera(全部内脏)4)specialvisceralsensoryfiber(SVA)(特殊内脏感觉纤维):olfactory(嗅器)andtaste(味器)2.Motor(efferent)fibers[运动(传出)纤维]1)generalso
5、maticmotorfiber(GSE)(一般躯体运动纤维):musclesoftheeyeandtongue(眼外肌和舌肌)2)generalvisceralmotorfiber(GVE)(一般内脏运动纤维):smoothmm.(平滑肌),cardiacmm.(心肌),glands(腺体)3)specialvisceralmotorfiber(SVE)(特殊内脏运动):skeletalmusclesderivefrombranchialarch(源于鳃弓的骨骼肌)I鳃弓咀嚼肌,II鳃弓面肌,III-VII鳃弓咽喉肌,胸锁乳
6、突肌,斜方肌I.TheOlfactoryNerve(嗅神经)-----SVAolfactorybulb(嗅球)Olfactorycells(嗅细胞)withintheolfactoryepitheliumofnasalcavity(在鼻腔内嗅区上皮)olfactoryfilaments(嗅丝)cribriformforamina[anosmia嗅觉丧失]II.TheOpticNerve(视神经)SSA[totalblindness全盲]photoreceptorcells(感光细胞)rodcells(视杆细胞)conecells(
7、视锥细胞)Bipolarcells(双极细胞)Ganglioniccells(节细胞)OpticNerveOpticchiasma(视交叉)opticcanal(视神经管)Ⅲ.TheOculomotorNerve(动眼神经)GSE,GVEmidbrain(中脑)脚间窝superiorrectuslevatorpalpebraesuperioris(上直肌,上睑提肌)inferiorrectusmedialrectusinferioroblique(下直肌,内直肌,下斜肌)[strabismus斜视][眼睑下垂,瞳孔扩大,眼球转向外
8、下,复视]sphincterpupil,ciliarym.(瞳孔括约肌,睫状肌)IIIsuperiorbranch(上支)IIIinferiorbranch(下支)sup.orbitalfissure(眶上裂)Ⅲ.TheOculomotorNerv