Both avian and mammalian hearts are four chambered. The anatomy and physiology of heart is described by

Blood always enters into an atrium and then is pumped into a ventricle.

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Blood pressure alternates between systolic pressure and diastolic pressure.

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The atria provide one pump and the ventricles provide a second pump.

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The heart sends blood out through arteries and retrieves blood through veins.

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The heart pumps blood simultaneously through a pulmonary circuit and a systemic circuit.

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Solution

The correct option is D The heart pumps blood simultaneously through a pulmonary circuit and a systemic circuit.
Double circulation of blood is exhibited exclusively by mammals and aves as they have a four-chambered heart. it includes systemic and pulmonary circulation. Systemic circulation includes pumping of oxygenated blood to the whole body from heart and transport of deoxygenated blood from the body to heart for oxygenation. The pulmonary circuit includes pumping of deoxygenated blood from the heart to lung for oxygenation followed by its pumping to heart. This is how four chambered heart keeps oxygenated and deoxygenated blood separate via these two circulations.
Therefore, the correct answer is option E.

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Similar questions

Right atrium, Left atrium, Right ventricle, Left ventricle, Pulmonary, Systemic Aorta, Veins

The one-wav flow of blood in the human heart is from .........( 1) ......... where blood pour in oxygen enters, the ........ .(2). ........ which pumps blood through the .........( 3) ......artery to the lungs.Oxygen-rich blood returns to the heart by way of pulmonary..........(4).........,which empty into the .........( 5) .......... Then blood moves to the ......... (6) ......... which pumps the blood through the ......... (7) ......... and then to all the arteries of the body except those carrying blood to the lungs.

Q. Read the statements and select the option which best describes the process that occurs during systematic circulation.
(i) The left atrium receives the oxygenated blood through the pulmonary veins. The left ventricle pumps the blood through the aorta to various parts and the de-oxygenated blood reaches right atrium.
(ii) The left atrium receives the oxygenated blood through pulmonary veins and pumps the blood through the aorta to various parts and the de-oxygenated blood reaches the right atrium.
(iii) The left atrium receives de-oxygenated blood and pumps into left ventricles which in turn pumps into pulmonary artery for oxygenation.
(iv) The right atrium receives the de-oxygenated blood and pumps into pulmonary artery for oxygenation.

Match the parts of the heart in Column I with the direction of flow of blood in Column II
$\begin{matrix} C o l u m n I & C o l u m n I I (i) R i g h t V e n t r i c l e & (a) P u m p s d e o x y g e n a t e d b l o o d i n t o t h e p u l m o n a r y a r t e r y (i i) P u l m o n a r y V e i n s & (b) T a k e s d e o x y g e n a t e d b l o o d (i i i) L e f t A t r i u m & (c) R e c e i v e s b l o o d f r o m d i f f e r e n t p a r t s o f t h e b o d y . (i v) P u l m o n a r y A r t e r i e s & (d) B r i n g o x y g e n a t e d b l o o d f r o m l u n g s t o t h e h e a r t . (v) L e f t V e n t r i c l e & (e) P u m p s b l o o d i n t o t h e a o r t a . (v i) R i g h t A u r i c l e & (f) R e c e i v e s d e o x y g e n a t e d b l o o d f r o m t h e p u l m o n a r y v e i n s . \end{matrix}$

The left ventricle of heart pumps blood into:

The upper chambers of the heart which pump blood into the ventricles are called

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