Physiology MCQs

Page No. 37

Oxygen dissociation cure is shifted to the right in all except_____________?


aFall in pH


bRise in temperature


cIncrease of 2, 3 3 DPG


dHbF


View Answer HbF

Muscle of expiration____________?


aDiaphragm


bInternal intercostals


cExternal intercostals


dRcti Abdominis


View Answer Internal intercostals

In which of the following diseases would you expect to find an increase in thickness of the respiratory membrane ?


aEmphysema


bAsthma


cPulmonary artery thrombosis


dSkeletal abnormalities of the chest


View Answer Emphysema

Arterial PO2 is reduced in_____________?


aAnemia


bKCN poisoning


cPulmonary hypoventilation


dCO poisoning



Which of the following does not stimulate alveolar hyperventilation ?


aHypoxia


bHypercapnia


cAcidosis


dStretching of airways


View Answer Stretching of airways

The most common form of hypoxia is______________?


aHypoxic


bStagnant


cAnemic


dHistotoxic


View Answer Hypoxic

In Haldane effect CO2 dissociation curve is shifted to_____________?


aLeft


bRight


cDoes not shift


dNone of the above


View Answer Right

The oxygen tension of the mixed venous blood is______________?


a25 mm Hg


b40 mm Hg


c55 mm Hg


d70 mm Hg


View Answer 40 mm Hg

In conn’s disease, there is an excess of______________?


aAdrenaline


bAldosterone


cCortisol


dNoradrenaline


View Answer Aldosterone

In children, hypothyroidism causes_____________?


aAcromegaly


bCretinism


cGigantism


dMyxodedema


View Answer Cretinism

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