Cardiac Output

Q. Calculate the cardiac output (ml)of an athlete if the volume of blood pumped by each ventricle per beat is 70 ml and the heart rate is 80 beats per minute.

1. 5040
2. 5400
3. 5600
4. 5800

Q. Which of the following carries blood from the hypothalamus of the brain to the anterior lobe of pituitary?

1. Hepatic portal system
2. Hypophyseal portal system
3. Renal portal system
4. None of these

Q. What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100mL and at the end of ventricular systole is 50 mL?

1. 125 beats per minute
2. 50 beats per minute
3. 75 beats per minute
4. 100 beats per minute

Q.

What is dilated cardiomyopathy?

Q. What would be cardiac output of a person having 72 heart beats per minute and a stroke volume of 50 ml?

1. 360 ml
2. 3600 ml
3. 7200 ml
4. 5000 ml

Q. What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100mL and at the end of ventricular systole is 50 mL?

1. 125 beats per minute
2. 50 beats per minute
3. 75 beats per minute
4. 100 beats per minute

Q. The stroke volume multiplied by the ___ gives cardiac output

1. blood pressure
2. heart rate
3. cardiac cycle
4. pumping efficiency

Q. Read the following statements:
(i) During a cardiac cycle, both ventricles pump out approximately $70\text{ml}$ of blood called stroke volume.
(ii) Cardiac output can be defined as volume of blood pumped out by both ventricle per minute.
(iii) Cardiac output of an athlete will be higher than that of an ordinary man.
(iv) During each cardiac cycle two prominent sounds are produced.
How many statements are correct?

1. Three
2. One
3. Two
4. Four

Q. A patient has a cardiac output of 6500 ml per minute and stroke volume of 50 ml. Find his pulse in beats per minute.

1. 50.5
2. 92.5
3. 130
4. 72

Q.

Doctors use stethoscope to hear the sound produced during each cardiac cycle. The second sound is heard when:

1. AV node receives signal from SA node

2. AV valves open up

3. Ventricular walls vibrate due to the gushing of blood from atria.

4. Semilunar valves close down after the blood flows into vessels from ventricles.

Q. Calculate the cardiac output (ml)of an athlete if the volume of blood pumped by each ventricle per beat is 70 ml and the heart rate is 80 beats per minute.

Q.

Explain any two problems related to functioning of heart?