Question

what is double circulation ? what are its advantages ? (5 marks )
CLASS X
LIFE PROCESSES

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Answer 1

HEEYEE MATE ❤️❤️❤️❤️ HERE IS UR ANSWER....

HUMAN CIRCULATION IS KNOWN AS DOUBLE CIRCULATION BECAUSE OUR HEART PUMPS WITH TWO TIMES...

THAT IS BLOOD GOES TO THE HEART AND AGAIN IS GOES TO THE LUNGS FROM LUNGS IT COMES TO THE HEART AND FROM HEART IT CIRCULATES TOWARDS THE ENTIRE BODY BECAUSE OF THIS R HUMAN SYSTEM THAT IS CIRCULATORY SYSTEM IS KNOWN AS DOUBLE CIRCULATORY SYSTEM...


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Answer 2

In double circulation, there are two pathways in which blood flows. They are:

1.Pulmonary pathway.

2.Systemic pathway.

The pulmonary circulation or pathway carries the deoxygenated blood from the right side of the heart to the lungs.  Exchange of oxygen and carbon dioxide takes place in the lungs and the blood is now oxygenated (with oxygen).

Through the systemic circulation, oxygenated blood travels from the left side of the heart to the other areas of the body. At various organ sites, exchange of gases, nutrients, and waste through lymph occurs. This deoxygenated blood again goes back to the right side of the heart.

The pulmonary circuit and the systemic circuit work together. This ensures that deoxygenated blood goes to the lungs through the pulmonary artery while the oxygenated blood from the aorta reaches the different organs and tissues.



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