the alveoli
The oxygen in the lungs goes in to alveoli, which have a large surface area so that the oxygen can diffuse (spread out into) the capillaries surrounding the lungs.
Pulmonary circulatory system.
All veins carry blood to the heart, and pulmonary veins are specifically veins that carry oxygenated blood (oxygenated in the lungs) from the lungs to the heart. In other words, the left pulmonary vein carries oxygenated blood from the left lung to the heart, and the right pulmonary vein carries oxygenated blood from the right lung to the heart.
transports de oxygenated blood from the heart to the lungs to be oxygenated. On a side note, the pulmory arteries bring back the oxygenated blood from the lungs to the heart later to be pumped out of the left ventricle into the Aorta
vena cava
Unoxygenated blood travels to the heart though the veins to be pumped to your lung capillaries. At you lung capillaries the blood becomes oxygenated and then goes back to the heart to pump oxygenated blood to the rest of your body. the capillaries blood travels though you arteries.
Pulmonary arteries
The pulmonary veins are found in pairs. Two from each lung. They carry oxygenated blood from the lungs to the heart.
Base of the lung
Deoxygenated blood leaves the right ventricle through the pulmonary artery and goes to the lung to get oxygenated. The newly oxygenated blood leaves the lung and goes to the left artium through the pulmonary vein. This is called pulmonary circulation.
Oxygenated blood is returned to the heart via the pulmonary veins, which drain into the left atrium. There are typically four pulmonary veins: two from the left lung and two from the right lung. This oxygen-rich blood is then pumped from the left atrium into the left ventricle, where it is distributed to the rest of the body.
Veins
they transport deoxygenated blood from the heart to either the left or right lung where the blood is oxygenated