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1. Dendritescontainthenuclei, ribosomes,mitochondria, andotherstructuresfoundinmost
.A A. A. .
A .A F# F# cells.
a. True
b. False
ANSWER: False
2. Neuronsreceiveinformation F#andt ransmit i t to othercells.
.A A
. A. A. A.
a. True
b. False
ANSWER: True
3. Santiago RamónyCajal used F#special
A. A. F# staining i F# techniquesto reveal F#that F # thebrainiscomposed ofindividual F#cells.
A. .
A A.
a. True
b. False
ANSWER: True
4. An F#efferent axon F#carriesinformation F#awayfrom F #a
A. i F# structure.
a. True
b. False
ANSWER: True
5. Thegreaterthesurface area F#of F#a F#dendrite,themore F#informationit F # can receive F#fromother
A
. A. A. F# neurons.
a. True
b. False
ANSWER: True
6. NeuronsareF#distinguishedfromother
A
. F# cells F#bytheirshape.
a. True
b. False
ANSWER: True
7. Theroleof glial cellsistoact like―glue‖ orF#scaffoldingtoF#supporttheneurons.
A. A
. A
. A. .A
a. True
b. False
ANSWER: False
8. GlialF#cellstransmit F#informationF#acrosslongdistances.
a. True
b. False
ANSWER: False
9. There aretwotypes F#of F#glial F#cellsthat F#produce F#myelin F#sheath. F#In F#the F#central F#nervous F#system, F#Schwann
A.
cells F#fulfill this F#role F#and, F#in F#the F#periphery, F#oligodendrocytes F#produce F#it.
F# A.
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a. True
b. False
ANSWER: False
10. Theblood-brain F#barrierismade F#up ofcloselypacked glial A. F# cells.
a. True
b. False
ANSWER: False
11. Thedifference in F#voltagein arestingneuronis F#calledthe restingpotential.
A. .
A A
.
a. True
b. False
ANSWER: True
12. Increasingtheelectrical F # gradient F# forpotassiumwillreducethetendencyfor F # potassiumions F#toexitthe F # neuron.
a. True
b. False
ANSWER: True
13. At F#the restingpotential,the F#potassiumchannels F#arecompletelyclosed F#andt hes odiumchannels are F#almost F#closed.
A. A
. A
. A. A
. A.
a. True
b. False
ANSWER: False
14. Dr. F#Skinner F#is F#workingin F#the F#lab F#measuringthe F#voltage F#of F#neurons, F#and F#duringone
F#condition,she F#tried to F#depolarize F#the F#neurons F#from F#-70 F#mV F#to F#-80 F#mV.
A.
a. True
b. False
ANSWER: False
15. Actionpotentialscan be F#producedinthedendrites of F#some F # neurons.
A
. A. A
. A.
a. True
b. False
ANSWER: False
16. Thetwo b asic F#kinds F#ofcells inthe nervous F # systemare
.A A. A. A
. A. .
a. neurons and F#glia
A.
b. dendrites and F#axonsA.
c. ribosomes F#and lysosomes A.
d. neuronsandaxons
ANSWER:a
Page F#2
, Page 4
A.
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17. SantiagoRamon F#yCajalF#demonstrated that . A.
a. atrest,the neuronhasaF#negative F#chargeinside F#its F#membrane
A
.
b. neuronsare F#separate F#fromone F # another
c. neuronscommunicateat specializedjunctionscalledsynapses
.A A. A
. A
.
d. actionpotentialsfollowtheall-or-nonelaw
A
.
ANSWER:b
18. Both and sharedthe Nobel F # PrizeforPhysiologyor F#Medicine F#in1906.
A
. A.
a. Golgi F#and Cajal A.
b. Cajal F#andSherrington
c. Sherringtonand F#Golgi
d. Cajal F#andKalat
ANSWER:a
19. Dr. F#Kimi F#studies F#the F#plasma F#membrane F#of F#neurons. F#He F#specifically F#researches F#the F#specialized
that F#allowin F#important F#things F#like F#water, F#oxygen, F#sodium, F#and F#so F#on.
a. lipid channels A.
b. proteinchannels
c. lipid receptorsA.
d. proteinreceptors
ANSWER:b
20. Neurons differ F#most F#stronglyfrom otherbodycellsin their
A. i A
. A. .
a. temperature
b. shape
c. osmoticpressure
d. mitochondria
ANSWER:b
21. What do F#neurons have F#thatother F#cells F#do F#not?
A. A.
a. Aplasma F#membrane
A
.
b. Large,branchingextensions
c. Proteinchannels
d. An endoplasmic reticulum
A. A.
ANSWER:b
22. Dr. F#McLaughlin’sF#labF#studies F#how F#newlyformed F#proteins F#areF#foldedinside F#neurons. F#Theywould F#be F#most
F# interested F#in F#studying F#the .
a. endoplasmic reticulum A.
b. mitochondria
c. ribosomes