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Physiology

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Cardiovascular System

Question
4 out of 12
 

About myocardial oxygen demand, true is (AIIMS NOV 2007)



A Inverse relation with heart rate

B Inverse relation of systemic hypertension

C Directly Proportional to ventricle systole duration

D Negligible in quiescent heart

Ans. C Directly Proportional to ventricle systole duration

Myocardial O2 usage is most closely related to tension-time index (or TTI)

Which is a product of

a. Mean systolic pressure b. Duration of systole c. Heart rate

Cardiovascular System Flashcard List

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