Question

why is blood circulation in human beings called double circulation​

Answer 1

Answer:

The human blood circulation is known as a double circulation because blood from your body must firstly be circulated to your lungs through the pulmonary arteries, called the pulmonary circulation to recieve oxygen and dump carbon dioxide. This then returns to the heart through the pulmonary veins into your left atrium.

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Answer 2

blood circulation is regaulate two round the heart of chamber is called double circulation