Physiology MCQ Questions — Page 467

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4195 Physiology

True regarding myocardial O2 demand?

AInversely related to heart rate

BHas constant relation to external cardiac work

CDirectly proportional to duration of systole

DIs negligible at rest

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4196 Physiology

Bradykinin causes

AStimulation of the visceral smooth muscle

BStimulation of the vascular smooth muscle

CInhibition of the visceral smooth muscIe

DInhibition of the vascular smooth muscle

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4197 Physiology

Sleep waves in hippocampal area is(MP 2000, AI 1998, KARNATAKA 2002, ASSAM 2002)

ADelta

BTheta

CBeta

DAlpha

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4198 Physiology

While measuring jugular venous pressure, ‘a’ wave is indicative of:

AAtrial filling

BAtrial relaxation

CAtrial contraction

DVentricular relaxation

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4199 Physiology

Brain temperature is most accurately measured through

ATympanic membrane

BNasopharynx

CScalp

DCornea

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4200 Physiology

Na/K pump which enzyme is used –

AATPase

BGTPase

CAcetyl CoA

DNone of these

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4201 Physiology

Flare response in triple response occurs due to

AVasodilation due to release of secondary mediators

BChemotaxis, adhesion of leucocytes to vessel wall

CDirect vessel injury

DIncreased permeability

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4202 Physiology

A/E are caused by accidental transection of pituitary stalk:

ADiabetes mellitus

BPolyuria

CGalactorrhea

DDiabetes insipidus

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4203 Physiology

Equilibrium potential for an ion is calculated using:

AGibbs-Donnan equation

BNerst equation

CGoldman equation

DNone

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