NEET MCQ on Double Circulation Quiz Questions

1. Identify the correct statement about Double circulation

A A double aortic arch is seen in birds and mammals B Double circulation is characteristic of all vertebrates C Blood pressure in the pulmonary circulation is lesser than that of the systemic circulation D The volume of blood in the pulmonary circulation is higher than the systemic circulation at any moment

2. The hepatic portal vein drains blood to the liver from ________

A Heart B Kidneys C Intestine D Stomach

3. Identify the incorrect statement about Double circulation

A It occurs only in mammals B It occurs in all vertebrates C It is composed of the systemic circulation D It is composed of pulmonary circulation

4. Pick the most appropriate statement(s) as part of the explanation for this statement – “Adult human RBCs are enucleated”

A Only B Only (II) C , (III) and (IV) D (III) and (IV)

5. Blood pressure in the pulmonary artery is ________

A Same as that in the aorta B Less than that in venae cavae C More than that in the carotid D More than that in the pulmonary vein

6. If a stethoscope is used by doctors for cardiac auscultation, then what will be the second sound for each cardiac cycle?

A AV valves open up B AV node receives a signal from SA node C The walls of ventricles vibrate due to flooding in of blood from atria D Semilunar valves shut down after the blood flows from ventricles into vessels

7. During which stage the blood pressure is maximum in the human aorta?

A Systole of the left atrium B Systole of the left ventricle C Diastole of the right atrium D Diastole of the right ventricle

8. Which of the following immediate procedure is carried out, when a patient with myocardial infarction is admitted to the hospital?

A Statins B Penicillin C Cyclosporin – A D Streptokinase

9. Systemic circulation in the cardiac system refers to

A carry red oxygenated blood B carry blood to the left side of the heart C carry blood to the right side of the heart D carry oxygenated blood from the lungs to the heart

10. Oxygenated blood in the cardiac system

A leaves from the right side of the heart B leaves from the left side of the heart C enters lungs from the heart D does not leave the lungs