Test Bank for Guyton and Hall Textbook of Medical Physiology 14th Edition By John E. Hall;

TEST BANK FOR
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Guyton and Hall Textbook of Medical Physiology (Guyton Ph
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ysiology) 14th Edition l l




11. Whichloflthelfollowinglislanlexampleloflal―feed-forward‖lcontrollsystem?

a. Thelarteriallbaroreceptorlsystem

b. Thelprogressivelnaturelofluterinelcontractionslduringlchildbirth

c. Controlloflskeletallmusclelmovementslbylthelbrain

d. Generationloflanlactionlpotentiall

ANS:lC

12. Whichloflthelfollowinglislanlexampleloflnegativelfeedback?lExamplel1:lArteriallbar
oreceptorlcontrolloflbloodlpressure

Examplel2:lExcitationloflthelrespiratorylcenterlbylincreasedlbloodlcarbonldioxidelconcentrationlExa

mplel3:lHemorrhagiclshocklcausedlbylseverelbloodlloss

a. Examplel1lonly

b. Examplel2lonly

c. Examplel3lonly

d. Examplesl1landl2,lbutlnotl3

e. Examplesl1,l2,landl3l

ANS:lD



Chapterl01:lFunctionallOrganizationloflthelHumanlBodylandlControlloflthel―InternallEnvir
onment‖

Hall:lGuytonlandlHalllTextbookloflMedicallPhysiology,l14thlEdition

,MULTIPLElCHOICE

1. Whichloflthelfollowinglstatementslaboutlhomeostasislislincorrect?

a. Itlrefersltolthelmaintenanceloflalstablelinternallenvironmentlforlthelbody.

b. Homeostaticlmechanismsldolnotloperatelinldiseases.

c. Homeostasislrequireslintegratedlactionsloflthelcells,ltissues,lorgans,landlmultiplelner

vous,lhormonal,landllocallcontrollsystems.

d. Homeostaticlcompensationslthatlbeginlafterlalmajorlenvironmentallchallengelmaylco

ntributeltolabnormalitiesloflbodylfunction.

ANS:lB

2. Whatlislthelmostlabundantltypeloflcelllinlthelhumanlbody?

a. Neuron

b. Epitheliallcell

c. Redlbloodlcell

d. Whitelbloodlcell

e. Vascularlsmoothlmusclelcell

f. Skeletallmusclelcelll

ANS:lC

3. Thelmostlabundantlsubstancelinlthelhumanlbodylandlthelapproximatelpercentageloflthatlsubs
tancelinlthelbodylislwhichloflthelfollowing?

a. Protein,l30%

b. Protein,l60%

c. Water,l30%

d. Water,l60%

e. Carbohydrate,l30%

f. Carbohydrate,l60%l

ANS:lD

,4. Iflthelfeedbacklgainloflalcontrollsystemlisl l 2.0,lthislmeanslthatlthelsystemlis

a. alnegativelfeedbacklsystemlcapableloflcorrectingl1/2loflthelinitialldisturbanceltolthel

system.

b. alnegativelfeedbacklsystemlcapableloflcorrectingl2/3loflthelinitialldisturbanceltolthel

system.

c. alnegativelfeedbacklsystemlcapableloflcorrectingl3/4loflthelinitialldisturbancelto



thelsystem.

d. alpositivelfeedbacklsystemlcapableloflcorrectingl1/2loflthelinitialldisturbanceltolthelsyst

em.

e. alpositivelfeedbacklsystemlcapableloflcorrectingl2/3loflthelinitialldisturbanceltolthelsyst

em.

f. alpositivelfeedbacklsystemlcapableloflcorrectingl3/4loflthelinitialldisturbanceltolthelsyst

em.

ANS:lB

5. Whichloflthelfollowinglsubstanceslhaslthelhighestlextracellularlfluidltolintracellularlflui
dlconcentrationlratiolforlmostlmammalianlcells?

a. Sodiumlions

b. Potassiumlions

c. Carbonldioxide

d. Glucose

e. Protein

ANS:lA
l




6. Exchangeloflsubstanceslbetweenlthelcardiovascularlsystemlandlthelinterstitiallfluidlocc
urslmainlylinlwhichloflthelfollowing?

a. Arteries

b. Arterioles

, c. Capillaries

d. Venules

e. Veins

ANS:lC
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7. Whatlislthelapproximateldistancelfromlthelcapillariesltolmostlcellsloflthelbody?

a. Lesslthanl50langstroms

b. Lesslthanl50lmicrons

c. Lesslthanl50lmillimeters

d. Lesslthanl100langstroms

e. Lesslthanl100lmicrons

f. Lesslthanl100lmillimetersl

ANS:lA

8. Whenlalpersonlislatlrest,lhowlmuchltimelislrequiredlforlthelbloodlinlthelcirculationltoltraver
selthelentirelcirculatorylcircuit?

a. 1lsecond

b. 1lminute

c. 3lminutes

d. 4lminutes

e. 5lminutesl

ANS:lB

9. Theltypeloflcontrollsystemlthatlcanlsometimeslcauselinstabilitylandlviciouslcycleslislcalled



a. negativelfeedback.

b. feed-forwardlcontrol.

c. positivelfeedback.

d. adaptivelfeedback.

e. delayedlnegativelfeedback.