Why four-chambered heart is beneficial?

It increases blood pressure.

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It pumps blood to the lungs more often, so blood is better oxygenated.

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It separates oxygenated and deoxygenated blood.

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It lowers blood pressure and the threat of heart attacks.

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It supplies the brain with more blood for cognition.

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Solution

The correct option is C It separates oxygenated and deoxygenated blood.
In the case of four-chambered heart, there are two atria and two ventricles. The type of blood circulation in such type of heart is called as double circulation, including pulmonary and systemic circulation. The blood enters twice through the heart in this cycle, which prevents the deoxygenated and the oxygenated blood from getting mixed and the circulation is maintained properly.
Thus, the correct answer is option 'It separates oxygenated and deoxygenated blood'.

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Similar questions

Q. Match the chambers of the human heart in Column A to its function in Column B.

\begin{matrix} C o l u m n A & C o l u m n B (i) R i g h t a t r i u m & (a) P u m p s d e o x y g e n a t e d b l o o d t o l u n g s (i i) L e f t a t r i u m & (b) R e c e i v e s o x y g e n a t e d b l o o d f r o m l u n g s (i i i) R i g h t v e n t r i c l e & (c) P u m p s o x y g e n a t e d b l o o d t o t h e b o d y (i v) L e f t v e n t r i c l e & (d) R e c e i v e s d e o x y g e n a t e d b l o o d f r o m t h e b o d y \end{matrix}

Q. In fishes, a -chambered heart pumps deoxygenated blood to the , and this blood gets oxygenated and moves directly to all the body parts.

Q. Which of the following statement (s) is (are) true about heart?
(i) Left atrium receives oxygenated blood from different parts of the body while right atrium receives deoxygenated blood from lungs.
(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs.
(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different parts of the body.
(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body.

Q. Which of the following statement(s) wrong with regard to heart?
A. Left atrium receives deoxygenated blood from different parts of the body while right atrium receives deoxygenated blood from the lungs.
B. Right atrium receives deoxygenated blood from different body parts while right ventricle pumps deoxygenated blood to the lungs.
C. Left atrium receives oxygenated blood from lungs while left ventricle pumps oxygenated blood to different parts of the body.
D. Pulmonary vein carries deoxygenated blood to the lungs and pulmonary artery brings oxygenated blood towards the heart.

How do fishes cope up with two chambered heart where oxygenated and deoxygenated blood mixes up unlike mammals which have four chambered heart for efficient flow of blood?

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