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1. Dendritescontainthenuclei,ribosomes,mitochondria,andotherstructuresfoundinmostp p cells.
.A A. A. .
A A
.
a. True
b. False
ANSWER: False
2. Neuronsreceiveinformationpandtransmit it to othercells.
.A A
. A. A. A.
a. True
b. False
ANSWER: True
3. Santiago RamónyCajal usedpspecialp staining techniquesto revealpthatpthebrainiscomposed ofindividualpcells.
A. A. ip A. A
. A.
a. True
b. False
ANSWER: True
4. Anpefferent axonpcarriesinformationpawayfrom ap structure.
A. ip
a. True
b. False
ANSWER: True
5. Thegreaterthesurface areapofpapdendrite,themorepinformationitpcan receivepfromotherp neurons.
A
. A. A.
a. True
b. False
ANSWER: True
6. Neuronsarepdistinguishedfromotherp cellspbytheirshape.
A
.
a. True
b. False
ANSWER: True
7. Theroleofglial cellsistoact like―glue‖orpscaffoldingtopsupporttheneurons.
A. A
. A
. A. .A
a. True
b. False
ANSWER: False
8. Glialpcellstransmitpinformationpacrosslongdistances.
a. True
b. False
ANSWER: False
9. There aretwotypespofpglialpcellsthatpproducepmyelinpsheath.pInpthepcentralpnervouspsystem,pSchwannpcellspf
A.
ulfill thisprolepand,pinpthepperiphery,poligodendrocytespproducepit.
A.
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a. True
b. False
ANSWER: False
10. Theblood-brainpbarrierismadepup ofcloselypacked glialp cells. A.
a. True
b. False
ANSWER: False
11. Thedifference i npvoltage in arestingneuronispcalledtherestingpotential.
A. A
. A
.
a. True
b. False
ANSWER: True
12. Increasingtheelectricalp gradientpforpotassiumwillreducethetendencyforppotassiumionsptoexitthepneuron.
a. True
b. False
ANSWER: True
13. Atpthe restingpotential,theppotassiumchannelsparecompletelyclosedpandthesodiumchannels a repalmostpclosed.
A. A
. A
. A
. A
. A.
a. True
b. False
ANSWER: False
14. Dr.pSkinnerpispworkinginptheplabpmeasuringthepvoltagepofpneurons,pandpduringonepcondition,she
ptried topdepolarizepthepneuronspfromp-70pmVptop-80pmV.
A.
a. True
b. False
ANSWER: False
15. Actionpotentialscan bepproducedinthedendrites ofpsomepneurons.
A
. A. A
. A.
a. True
b. False
ANSWER: False
16. Thetwo basicpkindspofcells inthe nervouspsystemare
.A A. A. A
. A. .
a. neuronsandpglia A
.
b. dendritesandpaxons A
.
c. ribosomespand lysosomes A.
d. neuronsandaxons
ANSWER:a
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17. SantiagoRamonpyCajalpdemonstrated that . A.
a. atrest,theneuronhasapnegativepchargeinsidepitspmembrane
A
.
b. neuronsarepseparatepfromonep another
c. neuronscommunicateat specializedjunctionscalledsynapses
.A A. A
. A
.
d. actionpotentialsfollowtheall-or-nonelaw
A
.
ANSWER:b
18. Both and sharedthe NobelpPrizeforPhysiologyorpMedicinepin1906.
A
. A.
a. Golgipand Cajal A.
b. CajalpandSherrington
c. SherringtonandpGolgi
d. CajalpandKalat
ANSWER:a
19. Dr.pKimipstudiespthepplasmapmembranepofpneurons.pHepspecificallypresearchespthepspecialized
thatpallowinpimportantpthingsplikepwater,poxygen,psodium,pandpsopon.
a. lipid channelsA.
b. proteinchannels
c. lipidreceptorsA.
d. proteinreceptors
ANSWER:b
20. Neurons differpmostpstronglyfrom otherbodycellsin their
A. i A
. A. .
a. temperature
b. shape
c. osmoticpressure
d. mitochondria
ANSWER:b
21. What dopneurons havepthatotherpcellspdopnot?
A. A.
a. Aplasmapmembrane
A
.
b. Large,branchingextensions
c. Proteinchannels
d. An endoplasmic reticulum
A. A.
ANSWER:b
22. Dr.pMcLaughlin’splabpstudiesphowpnewlyformedpproteinsparepfoldedinsidepneurons.pTheywouldpbepmostpinter
estedpinpstudyingpthe .
a. endoplasmic reticulum A.
b. mitochondria
c. ribosomes