Q51 of 367 Page 74

What is meant by the terms 'single circulation' and 'double circulation'?

In the case of single circulation, blood passes through the heart only once in one complete cycle of the body whereas in double circulation, blood passes through the heart twice in one complete cycle of the body.


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Draw a diagram of the human heart and label its parts.

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Describe the working of human blood circulatory system with the help of a suitable diagram which shows all the steps involved.

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