Question

what is double circulation

Answer 1

✔️✔️For easy explanation:➖➖

⏹The blood passes through the heart twice. Since the blood goes twice through the heart, it is known as double circulation.

⏹Warm-blooded animals like mammals have this type of blood circulation.

✔️✔️For 4 marks :➖➖

⏹ The heart has superior and inferior vena cava.

⏹They carry deoxygenated blood from the upper and lower parts of body and supply the deoxygenated blood to the right auricle of our heart.

⏹The right auricle contracts and passes the deoxygenated blood to the right ventricle.

⏹The right ventricle contracts and passes the deoxygenated blood into the two pulmonary arteries, which pumps it to the lungs where the blood is oxygenated.

⏹From the lungs, the pulmonary veins transport the oxygenated blood to the left atrium of the heart.

⏹The left atrium contracts and through the and the oxygenated blood enters the left ventricle.

⏹The blood passes to aorta from the left ventricle.

⏹ The aorta gives arteries that distribute the oxygenated blood to all the regions of the body.

⏹Since the blood goes twice through the heart it is known asdouble circulation.

Answer 2

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It is called a double circulatory system because blood passes through the heart twice per circuit.