Oxygen
Chat with our AI personalities
No. The blood is always pumped in one direction.
Blood flows from the systemic circulation into the right atrium of the heart, then passes through the tricuspid valve to the right ventricle. From there, blood is pumped to the lungs. On the blood's return from the lungs, it enters the left atrium, then moves through the bicuspid valve to the left ventricle. From there, it is pumped to the systemic circulation.
Blood goes into the right side of the heart from the body then pumped to the lungs for purification( this is when oxygen is mixed with haemoglobin( a substance in the body) to make the blood cleaned, it is then pumped to the left side of the heart were it is transported to every part of the body, then the circulation starts all over again.............
The deoxygenated blood goes into the lungs through pulmonary artery from the right ventricle. the oxygenated blood again enters the heart from the lungs by pulmonary veins to the left atrium.
Heart has two sides (4chambers) separated by a septum.One side it collects the impure blood ie from all the parts of our body and pumps it to lungs. At lungs through alveoli the co2 diffuses out and oxygen enters the blood. this pure blood (oxygenated blood) enters the other side of heart from where it is pumped to all body parts AND cycle continues.