Question

what is double circulation and its significance
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Answer 1

Answer:

(1) Double circulation : Movement of blood twice through the heart during ore circulation cycle is called double circulation. Body » heart » ungs » heart » body is the course of double circulatdon.

(2) Significance of double circulation :

• a. Double circulation is more effective type of circulation in which oxygenated and deoxygenated type of blood do not intermix.
• b. The systemic circulation i.e. from body to heart and back to body while the pulmonary circulation i.e. from heart to Tungs and back to heart circulate the blood uniformly.

(3) Coronary and hepatic portal circulation is also achieved due to double circulation.

Answer 2

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$\blue\longmapsto\:$ The blood circulation in which blood passes through the heart twice ,in a complete cycle is called double circulation.It consists of pulmonary circulation and systematic circulation.

Significance :- It prevents the mixing of oxyhenated and deoxygenated types of blood

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