Select the incorrect statement about pumping of blood by the human heart:

Carbon dioxide rich blood is sent to the heart by all the organs.

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Carbon dioxide rich blood is sent to the heart by the lungs.

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Deoxygenated blood is the same as carbon dioxide rich blood.

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Oxygenated and deoxygenated blood are separated.

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Solution

The correct option is B Carbon dioxide rich blood is sent to the heart by the lungs.
Oxygenated blood flows only in the left side of the heart, and deoxygenated blood, which is also carbon dioxide-rich, flows through the right side of the heart. Oxygenated blood reaches the heart from the lungs, which is then pumped to the body organs. Deoxygenated blood comes to the heart from all parts of the body, to be pumped to the lungs for oxygenation and removal of carbon dioxide.

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Similar questions

Which of the following is correct about the pulmonary artery?

I : It contains oxygen rich blood

II : It contains carbon dioxide rich blood

III : It carries blood pumped from the heart to lungs

IV : It carries blood from the lungs to the heart

What is the special feature present in human heart which does not allow mixing of blood when oxygen rich and carbon dioxide rich blood reach the heart?

Q. Which of the following blood vessel carries carbon dioxide rich blood from heart to the lungs?

In the human heart, oxygenated blood flows through the right side and carbon dioxide-rich blood flows through the left side.

Q. Identify the correct match.

I: Arteries – Oxygen-rich blood
II: Arteries – Carbon dioxide-rich blood
III: Veins – Oxygen-rich blood
IV: Veins – Carbon dioxide-rich blood

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