Question

explain how blood is purified through lungs and heart.

class 10icse

Answer 1

There's one factor on earth and absent on other planets with which life is exsisting here.That's nothing but oxygen.

Oxygen is essential for living for humans and almost all the living creatures(except the anaerobic organisms).So,this oxygen issupplied to the body through pumpingmechanism of heart.

But heart doesn't play a role in converting deoxygenated blood into oxygenated.Deoxygenated blood from various body parts is collected through superior and inferior vena cava in to right atrium,and then to right ventricle.From right ventricle of heart,blood is pumped to lungs foroxygenation(respiration)through plumary arteries. From lungs blood is collected into the heart through plumonary veins and pumped to various parts through aorta.