Physiology MCQ Questions — Page 906

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8146 Physiology

The absolute refractory period of an action potential is due to:

AInsufficient neurotransmitter

BDepletion of intracellular Na+

CInactivation of Na+ K+ ATPase

DVoltage inactivation of the Na+ channel

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8147 Physiology

The genotype of a person with blood group ‘A’ should be:

ACO

BBO

CAB

DAO

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8148 Physiology

Which of these can cause hypocalcemia:

AThyroxine

BCalcitonin

CCalcitonin

DCholoecalciferol

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8149 Physiology

What is FRC?

AVolume present in lungs after normal expiration

BVolume present in lungs after forceful expiration

CVolume present in lungs after deep inspiration

DVolume present in lungs after normal inspiration

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8150 Physiology

Which of the following ion is exchanged in the stomach for H+ secretion?

ANa+

BK+

CCa+

DCl-

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8151 Physiology

True about iron absorption are all, except ?

AMajor site of absorption is duodenum

BStored as Ferritin

CAbsorbed in ferrous form

DPancreatic secretions improves the absorption

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8152 Physiology

Dorsal root ganglia have

AUnipolar

BMultipolar

CBipolar

DPsudounipolar

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8153 Physiology

Postural reflex with integrating center in spine

ARighting reflex

BTonic labyrinthine reflex

CRighting reflex

DCrossed extensor reflex

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8154 Physiology

Secretory phase of endometrium is due to which hormone?

AEstrogen

BProgesterone

CProlactin

DPregnenediol

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