Assertion: The cardiac output of an ordinary man and of an athlete is the same. Reason: It is impossible to alter the stroke volume as well as heart rate.

Question

Assertion: The cardiac output of an ordinary man and of an athlete is the same. Reason: It is impossible to alter the stroke volume as well as heart rate. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

The stroke volume multiplied by the heart rate (no. of beats per min.) gives the cardiac output. Therefore, the cardiac output can be defined as the volume of blood pumped out by each ventricle per minute and averages 5000 mL or 5 litres in a healthy individual. The body has the ability to alter the stroke volume as well as the heart rate and thereby the cardiac output. For example, the cardiac output of an athlete will be much higher than that of an ordinary man.

Q. Assertion : The cardiac output of an ordinary man and of an athlete is the same. Reason : It is impossible to alter the stroke volume as well as heart rate.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Q. Assertion : The cardiac output of an ordinary man and of an athlete is the same.
Reason : It is impossible to alter the stroke volume as well as heart rate.