Blood goes to the lungs oxygen poor and comes out of the lungs oxygen rich.
lungs
oxygenated blood
the blood goes to the pulmonary artery and then goes into the lungs.
Lungs contain lots of blood. Blood goes to the lungs to pick up oxygen.
so they can purified the air the goes into the heart
oxygen.
in a fetus blood does not reach the lungs for purification. In a baby blood goes to the lungs for oxygenation.
Blood from all parts of the body except the lungs goes to the vena cava. Blood vessels that carry blood towards the heart are veins.
Your blood must pass through your lungs, before it goes to the rest of the body.
500 Billion years
it goes to the lungs
Oxygen goes from the lungs to the tissues via the blood stream and CO2 goes back to the lungs via the blood stream