Question

explain the double circulation briefly?

Answer 1

so it begins this way (as you wanted a brief explanation I'm giving you a brief one)
⏺double circulatory system is found in all vertebrates
⏺it helps them maintain there constant body temperature as they have high energy needs so this essential
⏺this is because the deoxygenated and oxygenated blood is separated in their body and blood vessels are also present
⏹so now we know what double circulation is we need to know the way it is being carried out :
⏺As the name says, by "double circulation " it means that it involves two moments
✅1.pulmonary circulation =
inferior Vena cava and superior Vena cava bring deoxygenated blood to the heart into the right auricle which then moves to right ventricle because of tricuspid valve. This blood then passes through the semilunar valve and enters the pulmonary artery heading into the lungs for purification.......
✅2.Systemic circulation =
after purification blood comes back to the heart through pulmonary veins into the left auricle and then enters the left ventricle via bicuspid valve and then crossing the semi lunar valve it enters the aorta(the main blood vessel giving rise to all the arteries heading out from the heart) to the body.......
hope this helps ^_^
<I guess my answer is worth being marked as the brainliest!>

Answer 2

Hi friend,
In human beings, Blood goes through the heart twice during each cycle of passage through the body.
This is known as double circulation.

First , oxygenated blood comes to the left atrium, then goes to the left ventricle and is then pumped to the rest of the body. Similarly, deoxygented blood comes to the right atrium , goes to the right ventricle and is then pumped to the lungs for oxygenation.