Guyton and Hall Textbook of Medical Physiology (Guyton Physiology) 14thEdition
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Chapter 01: Functional Organization of the Human Body and Control of the ―InternalEnviron
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ment‖
Hall: Guyton and Hall Textbook of Medical Physiology, 14th Edition
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MULTIPLEcCHOICE
1. Whichcofcthecfollowingcstatementscaboutchomeostasisciscincorrect?
a. Itcrefersctocthecmaintenancecofcacstablecinternalcenvironmentcforcthecbody.
b. Homeostaticcmechanismscdocnotcoperatecincdiseases.
c. Homeostasiscrequirescintegratedcactionscofctheccells,ctissues,corgans,candcmultiple
nervous,chormonal,candclocalccontrolcsystems.
d. Homeostaticccompensationscthatcbegincaftercacmajorcenvironmentalcchallengecmay
contributectocabnormalitiescofcbodycfunction.
ANS:c B
2. Whatciscthecmostcabundantctypecofccellcincthechumancbody?
a. Neuron
b. Epithelialccell
c. Redcbloodccell
d. Whitecbloodccell
e. Vascularcsmoothcmuscleccell
f. Skeletalcmuscleccell
ANS:c C
3. Thecmostcabundantcsubstancecincthechumancbodycandcthecapproximatecpercentagecofcthatcsu
bstancecincthecbodyciscwhichcofcthecfollowing?
a. Protein,c30%
b. Protein,c60%
c. Water,c30%
d. Water,c60%
e. Carbohydrate,c30%
f. Carbohydrate,c60%
ANS:c D
4. Ifcthecfeedbackcgaincofcaccontrolcsystemcis 2.0,cthiscmeanscthatcthecsystemcis
a. acnegativecfeedbackcsystemccapablecofccorrectingc1/2cofcthecinitialcdisturbancecto
thecsystem.
b. acnegativecfeedbackcsystemccapablecofccorrectingc2/3cofcthecinitialcdisturbancecto
thecsystem.
c. acnegativecfeedbackcsystemccapablecofccorrectingc3/4cofcthecinitialcdisturbancecto
, thecsystem.
d. acpositivecfeedbackcsystemccapablecofccorrectingc1/2cofcthecinitialcdisturbancecto
thecsystem.
e. acpositivecfeedbackcsystemccapablecofccorrectingc2/3cofcthecinitialcdisturbancecto
thecsystem.
f. acpositivecfeedbackcsystemccapablecofccorrectingc3/4cofcthecinitialcdisturbancecto
thecsystem.
ANS:c B
5. Whichcofcthecfollowingcsubstanceschascthechighestcextracellularcfluidctocintracellularcfluidcc
oncentrationcratiocforcmostcmammalianccells?
a. Sodiumcions
b. Potassiumcions
c. Carboncdioxide
d. Glucose
e. Protein
ANS:c A
6. Exchangecofcsubstancescbetweenctheccardiovascularcsystemcandcthecinterstitialcfluidcoccursc
mainlycincwhichcofcthecfollowing?
a. Arteries
b. Arterioles
c. Capillaries
d. Venules
e. Veins
ANS:c C
7. Whatciscthecapproximatecdistancecfromctheccapillariesctocmostccellscofcthecbody?
a. Lesscthanc50cangstroms
b. Lesscthanc50cmicrons
c. Lesscthanc50cmillimeters
d. Lesscthanc100cangstroms
e. Lesscthanc100cmicrons
f. Lesscthanc100cmillimeters
ANS:c A
8. Whencacpersonciscatcrest,chowcmuchctimeciscrequiredcforcthecbloodcinctheccirculationctoctra
versecthecentireccirculatoryccircuit?
a. 1csecond
b. 1cminute
c. 3cminutes
d. 4cminutes
e. 5cminutes
ANS:c B
9. Thectypecofccontrolcsystemcthatccancsometimesccausecinstabilitycandcviciousccyclesciscca
lled
, a. negativecfeedback.
b. feed-forwardccontrol.
c. positivecfeedback.
d. adaptivecfeedback.
e. delayedcnegativecfeedback.
ANS:c C
10. Whichcofcthecfollowingciscancexamplecofcpositivecfeedbackcincthecbody?
a. Returncofcbloodcpressurectowardcnormalcaftercachemorrhage
b. Generationcofcactioncpotentialscincnerves
c. Increasedcrespirationcrateccausedcbycaccumulationcofccarboncdioxidecincthecblood
d. Decreasedcsympatheticcnervouscsystemcactivitycthatcoccurscincresponsecto
increasedcbloodcpressure
ANS:c B
11. Whichcofcthecfollowingciscancexamplecofcac―feed-forward‖ccontrolcsystem?
a. Thecarterialcbaroreceptorcsystem
b. Thecprogressivecnaturecofcuterineccontractionscduringcchildbirth
c. Controlcofcskeletalcmusclecmovementscbycthecbrain
d. Generationcofcancactioncpotential
ANS:c C
12. Whichcofcthecfollowingciscancexamplecofcnegativecfeedback?cE
xamplec1:cArterialcbaroreceptorccontrolcofcbloodcpressure
Examplec2:cExcitationcofcthecrespiratoryccentercbycincreasedcbloodccarboncdioxidecc
oncentration
Examplec3:cHemorrhagiccshockccausedcbycseverecbloodcloss
a. Examplec1conly
b. Examplec2conly
c. Examplec3conly
d. Examplesc1candc2,cbutcnotc3
e. Examplesc1,c2,candc3
ANS:c D
Chapter 02: The Cell and Its Functions
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Hall: Guyton and Hall Textbook of Medical Physiology, 14th Edition
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MULTIPLEcCHOICE
1. Thecmostcabundantccellcmembraneclipidscare
a. sphingolipids.
b. phospholipids.
c. cholesterol.
d. triglycerides.
e. sterols.
, ANS:c B
2. Organellescthatcneutralizecdrugscandctoxinscare
a. nuclei.
b. mitochondria.
c. lysosomes.
d. peroxisomes.
e. endoplasmiccreticulum.
ANS:c D
3. Usecthectermscincthecfollowingclistctocidentifyctheccellularclocationcforcthecstepscinvolvedcincth
ecsynthesiscandcpackagingcofcacsecretedcprotein.
―Initiationcofctranslation‖
a. Nucleolus
b. Nucleus
c. Agranularcendoplasmiccreticulum
d. Granularcendoplasmiccreticulum
e. Golgicapparatus
f. Endosomes
g. Peroxisomes
h. Cytosol
ANS:c H
4. Usecthectermscincthecfollowingclistctocidentifyctheccellularclocationcforcthecstepscinvolvedcincth
ecsynthesiscandcpackagingcofcacsecretedcprotein.
―Proteincsortingcandcpackaging‖
a. Nucleolus
b. Nucleus
c. Agranularcendoplasmiccreticulum
d. Granularcendoplasmiccreticulum
e. Golgicapparatus
f. Endosomes
g. Peroxisomes
h. Lysosomes
ANS:c E
5. Usecthectermscincthecfollowingclistctocidentifyctheccellularclocationcforcthecstepscinvolvedcincth
ecsynthesiscandcpackagingcofcacsecretedcprotein.
―Genectranscription‖
a. Nucleolus
b. Nucleus
c. Agranularcendoplasmiccreticulum
d. Granularcendoplasmiccreticulum
e. Golgicapparatus
f. Endosomes
g. Peroxisomes
h. Lysosomes