The blood needs to receive oxygen from the lungs so it can deliver it to the rest of the body.
it is pumped to the heart first then to the lungs
Lungs
blood is pumped through lungs
When blood is pumped into the thin-walled blood vessels of the lungs, carbon dioxide is replaced with oxygen.
Pulmonary artery and then on to the lungs.
When blood is pumped into the thin-walled blood vessels of the lungs, carbon dioxide is replaced with oxygen.
When blood is pumped into the thin-walled blood vessels of the lungs, carbon dioxide is replaced with oxygen.
it is pumped out of the lungs
Blood is pumped to the lungs first so that carbon dioxide can be released and oxygen can be picked up. This process allows the blood to be oxygenated before it is pumped to the rest of the body to deliver oxygen and nutrients to tissues and organs.
Oxygen
Oxygen
To remove CO2 and to replenish the O2 in the blood.