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In which of the following points pulmonary artery is different from pulmonary vein?
(a)It's lumen is broad
(b)It's wall is thick
(c)It has valves
(d)It does not possess endothelium

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Important Questions on Body Fluids and Circulation
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Which of the following statements is incorrect?

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Choose the schematic diagram which properly represents pulmonary circulation in humans.

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Which of the following sequences is truly a systemic circulation pathway?

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Which of the following options represents the correct systemic circulation in human being?

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What is the nature of blood passing through the blood vessels A, B, C and D respectively?


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The given figure is of circulatory system. Identify the labelled parts (A-D) from the list (i-vii).

(i) Pulmonary circulation
(ii) Systemic circulation
(iii) Superior vena cava
(iv) Inferior vena cava
(v) Aorta
(vi) Veins and venules
(vii) Arterioles and capillaries

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In the given figure of the heart which of the labelled parts carries oxygenated blood?


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Right atrium receives blood from:
