医学英语-muscular system

《医学英语-muscular system》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、MuscularSystemHuangTian,APSUMCOutlineFunctionsofthemuscularsystemThreedifferenttypesofmuscletissuesStructureoftheskeletalmusclefiberSlidingfilamentmodelofmusclecontractionMuscledisordersListanddescribefunctionsofmusclesIdentifythedifferencesamongthreetypesofmusclesD

2、escribethestructureoftheskeletalmusclefiberDescribetheslidingfilamentmodleofmusclecontractionListanddescribemuscledisordersObjectivesBytheendofthissection,studentsshouldbeabletoIntroductionThemuscularsystemisthelargestsysteminthebody.½ourbodyweightcomesfrommuscles.C

3、onsistsofover600individualmuscles.Consists3differenttypesofmuscletissues.CardiacmuscleSmoothmuscleSkeletalmuscle―Producemovementandmaintainposture―Pumpblood―Respiration―Protectinternalorgans―ProducebodyheatandregulatebodytemperatureFunctions2314576MuscleTypesThreety

4、pesofmusclesCardiacmuscleSmoothmuscleSkeletalmuscleCardiac[ˈkɑ:di:ˌæk]心脏的Myocardium[ˌmaiəuˈkɑ:diəm]心肌CardiacMuscleStriatedandbranchedSinglenucleusthatiscentrallylocatedMembranesofadjacentcellsfusedatintercalateddiscsInvoluntaryOnlyfoundinheartStriation[straiˈeiʃən]条

5、纹Intercalateddisk[inˈtə:kəleitid][disk]闰盘CardiacMuscleSmoothMuscleNon-striatedSpindle-shapedcellsSinglenucleusthatiscentrallylocatedInvoluntaryFoundmainlyinthewallsofholloworgansSmoothMuscleStriatedMultinucleatecellsthatareperipherallylocatedVoluntaryAttachedtoboneo

6、fskeletonSkeletalMuscleSkeletalMuscleStriationStructureofSkeletalMuscleFasciaFascia[ˈfæʃi:ə]筋膜Fascicle[ˈfæsikl]肌束Myofibril[ˌmaiəuˈfaibril]肌原纤维SkeletalMuscle3layersofconnectivetissueEpimysiumPerimysiumEndomysiumEpimysium[ˌepiˈmiziəm]肌外膜Perimysium[ˌperiˈmiziəm]肌束膜Endo

7、mysium[ˌendəuˈmiziəm]肌内膜SkeletalMuscleFiberCell–multinucleateNuclei–justbeneaththesarcolemmaSarcolemma–specializedplasmamembraneSarcoplasm–cytoplasmofmusclecellsSarcolemma[ˌsɑ:kəˈlemə]肌纤维膜Sarcoplasm[ˈsɑ:kəˌplæzəm]肌质DistinctbandsIband=lightbandAband=darkbandMyofibri

8、lContractileunitofamusclefiberSarcomereZdisk–adarkerareainmiddleofIband–ExtendfromZdisktoZdiskSarcomere[ˈsɑ:kəmiə]肌节Myofilament[ˌmaiəuˈfil