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A portal system is that in which:
(a)A vein begins from an organ and ends in the Heart.
(b)An artery breaks up in an organ and restarts by the union of its capillaries.
(c)The blood from the gut is brought into the kidneys before it is poured into the heart.
(d)A vein breaks up in an organ into capillaries & restarts by their union a new in the same organ.

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Important Questions on Body Fluids and Circulation
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Indicate correct statement for humans.

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A vein differ from an artery in having

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What is true about vein?

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In mammals the role of the spleen is:

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Which of the following is valve less?

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Which of the following carries deoxygenated blood only?

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Which vessel carries most oxygenated blood :-

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In a Portal system (Man):
