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NWHSU Physiology 1 PhizQuiz 1 Review with complete solutions
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NWHSU Physiology 1 PhizQuiz 1 Review with complete solutions
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NWHSU Physiology 1 PhizQuiz 1 Review2024-2025 with complete solutions
The iiability iiof iithe iibody iito iimaintain iia iirelatively iiconstant iiinternal iienvironment
iiregardless iienvironmental iichanges. ii- iiAnswers ii-Define iihomeostasis
Blood iiglucose iilevel iihomeostasis iiuses iithe iipancreas iito iisecrete iiinsulin iiand
iiglucagon iito iimaintain iilevel iiblood iiglucose iilevels. ii- iiAnswers ii-Give iiexamples iiof
iihomeostatic iiprocess
It iicontains iia iireceptor, iiafferent iipathway, iia iicontrol iicenter, iian iiefferent iipathway, iiand
iifinally iian iieffector. ii- iiAnswers ii-What iiare iithe iicomponents iiof iia iifeedback iiloop?
A iinegative iifeedback iisystem iihas iithe iibody iiact iito iireverse iithe iidirection iiof iichange.
iiThis iitends iito iikeep iithings iiconstant. iiBecause iiof iithis, iiit iiis iithe iimost iicommon
iihomeostatic iicontrol iimechanism. iiPositive iifeedback iicauses iichange iito iioccur iiin
iivariable iiresponse iichanges iithat iiare iivariable iieven iimore iiin iithe iisame iidirection. iiIt
iidoes iinot iiresult iiin iihomeostasis iibut iiin iibringing iiabout iian iieffective. ii- iiAnswers ii-
Compare iinegative iifeedback iicontrol iivs. iipositive iifeedback iicontrol
Negative iifeedback iiinhibition! ii- iiAnswers ii-Which iitype iiof iicontrol iiis iimost iicommon iiin
iithe iibody
Something iithat iiupsets iithe iibalance iiof iihomeostasis. iiAnything iithat iirepresents iia
iideviation iifrom iisome iinorm iior iisteady iistate. ii- iiAnswers ii-Provide iithe iidefinition ii&
iiexamples iiof iia ii"stressor" iias iiit iiapplies iito iithe iiconcept iiof iihomeostasis.
Cellular iiadaptation iioccurs iiif iia iicell iiis iiunable iito iimaintain iiits iioriginal iihomeostatic
iistate. iiIn iithose iicircumstances, iiit iimust iidraw iiupon iiits iireserves iiand iiadapt iito iithe
iinew iienvironment. iiThis iiis iicellular iiadaption. iiDecline iioccurs iiwhen iithe iicell iicannot
iiadapt. ii- iiAnswers ii-Compare iicellular iiadaptation iivs. iidecline iitoward iicellular
iidysfunction iiand iigive iiexamples.
Hypertrophy ii(cells iiincrease iiin iisize), iihyperplasia, iiatrophy, iiand iimetaplasia ii-
iiAnswers ii-What iiare iithe iifour iicellular iiadaptions?
Glucose iimetabolism-insulin iiresistance ii-> iiType ii2 iiDiabetes, iiThermoregulation, iiand
iithe iiStress iiResponse. ii- iiAnswers ii-What iithree iiexamples iiof iihomeostatic iiimbalance
iiwere iigiven iiin iiclass?
Shunting iiblood iito iicore, iishivering, iiincreasing iiepinephrine iiand iinorepinephrine,
iiincreased iithyroxine iifor iielevating iimetabolism, iiand iiincreasing iiphysical iiactivity. ii-
iiAnswers ii-How iidoes iithe iibody iiregain iihomeostasis iiduring iihypothermia?
, 65% ii- iiAnswers ii-What iipercentage iiof iihuman iibody iiis iiwater.
Intracellular iicompartment iiand iiExtra iicellular iicompartment. iiIn iithe iiECF iiyou iihave
iiinterstitial iifluid ii(in iithe iicell), iiintravascular iifluid ii(plasma), iiand iicerebrospinal iifluid. ii-
iiAnswers ii-Body iiFluid iiCompartments ii- iiWhat iiare iithe iitwo iifluid iicompartments
iidiscussed iiin iilecture?
ECF ii- iiAnswers ii-Bicarbonate iiions iiare iifound iiin iihigh iiconcentrations iiin iiwhich iifluid
iicompartment iiin iineurons?
ECF: iiSodium iiis iimain iication iiand iithe iibalancing iianions iiare iichloride iiand
iibicarbonate.
ICF: iiPotassium iiand iimagnesium iiare iithe iimajor iications iiand iiproteins iiand iiorganic
iiphosphates. ii- iiAnswers ii-Compare iiand iicontrast iithe iiionic iicompositions iiof iiECF iivs.
iiICF iiin iineurons. iiWhat iiare iithe iibalancing iianions?
ICF iiis iimore iiacidic iithan iiECF. ii- iiAnswers ii-Which iifluid iicompartment iihas iia iilower
iipH?
Low ii- iiAnswers ii-The iiICF iihas iia iivery ii____ iiconcentration iiof iiionized iiCa2+?
Phospholipids, iicholesterol, iiglycolipids, iiand iiproteins ii(e.g. iitransporters, iienzymes,
iihormone iireceptors, iiantigens, iiion iiand iiwater iichannels, iietc) ii- iiAnswers ii-What iiare
iithe iimajor iicomponents iiof iia iiplasma iimembrane? iiWhat iido iithese iicomponents iilook
iilike iiin iithe iimembrane?
Separates iiICF iifrom iiECF ii- iiAnswers ii-What iiare iithe iifunctions iiof iithe iiplasma
iimembrane?
It iimakes iithe iimembrane iihighly iipermeable iito iilipid iisoluble iisubstances ii(like iicarbon
iidioxide, iioxygen, iifatty iiacids, iiand iisteroid iihormones) iibut iia iivery iilow iipermeable iito
iiwater iisoluble iisubstances ii(like iiions, iiglucose, iiand iiamino iiacids.) ii- iiAnswers ii-How
iido iithe iichemical iicompositions iiof iiphospholipids iiinfluence iitransport iiacross iithe
iiplasma iimembrane?
Uphill iimoves iia iisolute iiagainst iiits iielectrochemical iigradient iiand iirequires iiATP.
iiDownhill iimoves iiit iidown iiits iielectrochemical iigradient iiand iidoes iinot iirequire iienergy.
ii- iiAnswers ii-Compare iiand iicontrast iidownhill iivs. iiuphill iicell iimembrane iitransport.
Primary iiis iiuphill iiand iirequires iienergy. iiThis iienergy iiis iiDIRECTLY iicoupled iito iithe
iitransport iiprocess. iiSecondary iiactive iitransport iihas iithe iidownhill iimovement iiof iione
iisolute iiproviding iienergy iifor iithe iiuphill iimovement iiof iianother iisolute. ii- iiAnswers ii-
Compare iiand iicontrast iiprimary iivs. iisecondary iiactive iitransport.
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