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Which of the following statement is correct ?

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Important Questions on Body Fluids and Circulation

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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
Correct course of blood circulation in human heart.
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In mammals, which blood vessel would normally carry the largest amount of urea?
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The pulmonary artery carries
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Which one of the following graphs best describes the Blood Pressure (BP) change when blood moves from aorta to capillaries?

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Blood pressure in the pulmonary artery is:
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The hepatic portal vein drains blood to the liver from
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Statement (S): The sinoatrial node is called 'Pace-maker'.

Reason (R): The sinoatrial node contains specialised cardiomyocytes and generates action potentials without any external stimuli.

The correct answer is

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Which one of the following animals has two separate circulatory pathways?
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Given below are sets of five terms each. Rewrite the terms in correct order in a logical sequence beginning with the first word that is underlined:

Artery, Capillaries, Venule, Vein, Arteriole.

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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
Blood pressure in the mammalian aorta is maximum during
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Which of the following sequences is truly a systemic circulation pathway?
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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
Arteries are best defined as the vessels which
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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
Which of the following vertebrate organs receives both oxygenated and deoxygenated blood?
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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
In which, blood circulation starts and ends in capillaries?
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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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Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Double Circulation
The figure shows a schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s.
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The pH of blood is
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Find the mismatch from the following:
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A vein possesses a large lumen because;
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In the foetus, the ductus arteriosus connects the