生理学英文分章题库Word文档格式.docx

生理学英文分章题库Word文档格式.docx

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E.thelevelofactivityofthesympatheticnerve.

4.Whichofthefollowingdescriptionsabouttheslowwaveofsmoothmuscleofalimentarytractiswrong?

A.Itisthespontaneousdepolarizationandrepolarrization

B.ItoriginateintheCajalcell.

C.Afterthenervesinnervatingthegutarecut,theslowwavestillpersist.

D.Itmaybethepacemakerpotentialforsmoothmuscle.

E.Itcausedirectlythesmoothmuscletocontrat.

5.FunctionalbaseoftheautorhythmicityofthesmoothmuscleofgastrointestinaltractisC

A.Theactionpotential.

B.Therestingmembranepotential

C.Thebasicelectricalrhythm（BER）.

D.Thetoniccontraction.

E.thesmoothmusclespontaneouscontraction.

6.ThecauseinitiatingslowwaveisA

A.AslowundulationoftheactivityoftheNa+-K+pump.

B.Aspontaneousdepolarizationandrepolarizationofcellmembrane

C.Na+-Ca2+exchange.

D.Ikprogressivelyattenuatedecrement

E.Ca2+inflow

7.IonicbaseoftherisingphaseofactionpotentialinsmoothmuscleofgastrointestinaltractisA

A.inflowofCa2+andsmallamountof

B.Na+inflow

C.Ca2+inflow

B.K+outflow

D.Cl-outflow

E.Cl-inflow

8.Whichofthefollowingdescriptionsabouttheinnervationofdigestiveorgansiscorrect?

C

A.Postganglionicfiberterminalsofsympatheticnervereleaseacetylcholine（Ach）

B.AllpostganglionicfiberterminalsofparasympatheticnervereleaseAch

C.Aftertheexternalinnervationofthegutarecut,theshortreflexesmaybecompleted.

D.Activityofsympatheticnerveincreasesthemovementofgastrointestinaltract.

E.Activityofparasympatheticnerveinhibitsthesecretionofdigestiveglands.

9.Whichofthefollowingdescriptionsaboutentericnervoussystemiswrong?

A.Thenumberofneuronsinthisintrinsicnervoussystemisalmostequaltothenumberinspinalcord.

B.Itcontainssensoryneurons,motorneuronsandintermediateneurons.

C.Itcancompleteashortreflexwithouttheexternalinnervation.

D.Itregulatesthemovementandglandssecretionofgastrointestinaltract.

E.Itisnotaffectedbytheexternalinnervation.

10.WhichofthefollowingisnotthefunctionofHCl?

A.Toactivatethepepsinogen

B.Tokillbacteria

C.Tostimulatetheuppersmallintestinalmucosatoreleasesecretin

D.Topromoteabsorptionoftheferrumandcalciumintheuppersmallintestinal.

E.TopromotesvitaminB12tobeabsorbed

11.Whichofthefollowingdescriptionsaboutthesecretionofthegastricacidiswrong?

A.Itissecretedbytheparietalcells.

B.TheintracellularH+istransportedbyprotonpumpintothecanaliculuslumen.

C.Theomeprazole（奥美拉唑）inhibitsstronglythesecretionofgastricacid.

D.WhenoneH+issecreted,oneHCO3-entersblood.

E.HClingastriclumendonotaffectthegastricsecretion.

12.ThelocationwherethevitaminB12tobeabsorbedisC

A.Stomach

B.Duodenum

C.Terminalileum

D.Jejunum

E.Largeintestine

13.ThesubstancethatactivatesthepepsinogenintopepsinisB

A.Enterokinase

B.HClandpepsin

C.Histamine

D.Trypsin

E.Chymotryosin

14.WhichofthefollowingisnotthefunctionofgastrinD

A.TopromotetheparietalcelltosecreteHCl

B.Topromotethepancreaticacinitosecretedigestiveenzyme

C.Topromotethelivertosecretethebile

D.Topromotetheabsorptionoffatacid

E.Tohavethetrophicactiontogastrointestinalmucosa

15.WhichofthefollowinginhibitstheGcellsfromreleasinggastrinB

A.Theintragastricfoodstretchesgastricwall.

B.ThepHinthegastricantrumisbelow1.5

C.Theintragastriocpeptonesandtheproteosesandpeptidesincrease

D.Theactivityofvagusnerveincreases

E.Theshortreflexcausedbystretchoffoodtothewallofgastricantrum

16.ThetransportmannerbywhichtheparietalcellssecreteH+isA

A.Primaryactivetransport

B.Secondactivetransport

C.Facilitateddiffusion

D.Simplediffusion

E.Exocytosis

17.AfterblockingtheMreceptorsbytheatropine,thechangeofthegastrointestinaltractis

A.Thesecretionofdigestiveglandsincreases.E

B.Theslowwaveslose

C.Thetoniccontractionloses

D.Theperistalsisloses

E.Thetoniccontractionandperistalsisweaken

18.WhichoffollowingsubstancesdonotincreasethegastricsecretionE

A.Gastrin

B.Histamine

C.acetylcholine

D.Activityofvagusnerve

E.Somatostatin

19.WhichoffollowingsubstancedonotinhibitgastricsecretionE

A.Somatostatin

B.Secretin

C.Prostaglandins

D.H2receptorantagonist,

E.Proteinfoods

20.Whichofthefollowingdescriptionsaboutthecephalicphaseofgastricsecretioniswrong?

A

A.Itispurenervousregulation.

B.Itinvolvesconditionedreflexandunconditionedreflex.

C.Mreceptorsantagonistsdecreasegastricsecretioninthisphase.

D.Itcaneliminatedbycuttingbilateralvagusnerves

E.Thesecretionhashighacidity,containsacopiousamountofpepsin.

21.Whichofthefollowingdescriptionsaboutthegastricphaseofgastricsecretioniswrong?

A.Itisinitiatedmainlybythedistentionoffoodongastricwall.

B.Itinvolvesthevagus-vaguslongreflex

C.ItItinvolvestheshortreflexofentericnervoussystem.

D.Itdonotinvolvesthereleaseandfunctionofthegastrin

E.Thesecretionhasalowacidity,butitspepsincontentishigherthanthatinthecephalicphase

22.OneofmechanismbywhichHClinhibitisC

A.IntragastricHClpromotesGcellstoreleasegastrin.

B.IntragastricHClinhibitsDcellsfromreleasingsomatostatin.

C.IntraintestinalHClcausesScellssecretescretin

D.IntraintestinalHClinhibitsduodenalmucosafromsecretingbulbogastrone.

E.HClinhibitsdirectlytheparietalcells.

23.MovementtypepeculiartostomachisB

A.Toniccontraction

B.Receptiverelaxation

C.Migratingmotorcomplex

D.Peristalsis

E.Massmovement

24.Aftercuttingthebilateralvagusnerves,thegastricreceptiverelaxationwillA

A.Lose

B.Weaken

C.Strengthen

D.Nochange

E.Weakenorstrengthen

25.WhichofthefollowingdescriptionsaboutthegastricperistalsisiswrongE

A.Itisacooperatingmovementofthelongitudinalmuscleandcircularmuscle

B.Itisoneofthemotivityofgastricempting

C.Itbegininthemidportionofthebodyofthestomach.

D.Itisabout3timesperminute.

E.Itdoesnotpartakeinmixing,andgrindingthestomachcontents.

26.WhichofthefollowingdescriptionsaboutthemigratingmotorcomplexiswrongA

A.Itismovementtypepeculiartosmallintestine.

B.Itoccursonfastingperiod

C.Itpropagatesfromthestomachtotheterminalileum

D.Inhumans,theMMCrepeatsevery75to90minutes

E.Itinhibitsthemigrationofcolonicbacteriaintothesmallterminalileum

27.WhichofthefollowinginhibitsthegastricemptingD

A.Thelongvagus-vagusreflex

B.Thelocallyshortreflex

C.Acetylcholine

D.Theenterogastricreflex

E.Histamine

28.WhichofthefollowingpromotesthegastricemptingA

A.Theincreasedintragastricfoodvolume

B.ThestimulationofHCltotheduodenalmucosa

C.Theincreasedfattycontentofthechymeinduodenum

D.Theincreasedosmoticpressureofthechymeinduodenum

E.Secretinandgastricinhibitorypeptide

29.WhichofthefollowingdescriptionsaboutthegastricemptingiswrongE

A.Fiveminutesafterthefoodentersstomach,thestomachbeginstoempty.

B.Itsdirectdrivingforceisthepressuredifferencebetweenthestomachandtheduodenum.

C.Itsmotivityistheperistalsisandgastrictoniccontraction

D.Thegastricemptyingrateoffatisthelowest.thatofsaccharideisthefastest,

E.Acetylcholineinhibitsgastricempting

30.ThemostimportantdigestivejuiceinhumanisB

A.Gastricjuice

B.Pancreaticjuice

C.Bile

D.Smallintestinaljuice

E.Largeintestinaljuice

31.ThemostpotentstimulusforsecretinreleasefromScellsinuppersmallintestinalmucosaA

A.HCl

B.Proteindigestiveproducts

C.Fattyacid

D.Saccharides

E.Efferentimpulsesofvagusnerve

32.ThemostpotentstimulusforCCKreleasefromDcellsinuppersmallintestinalmucosaB

A.HCl

B.Proteindigestiveproducts

C.Saccharides

D.Saccharides

33.FactorcausingthepancreastosecretealargeamountofbicarbonateandwaterisA

A.Secretin

B.Gastrin

D.CCK

E.Histamine

34.ThemostimportantfactorresultinginsecretionofpancreaticenzymesisB

B.CCK

C.Secretin

D.Gastrin

E.Activityofvagusnerves

35.TypeofmovementpeculiartothesmallintestineisE

B.