Actually it is the Left Atrium
The lungs, I the alviolies.
It flows through the pulmonary vein toward the heart.
The pulmonary vein enters the left atrium of the heart.
maybe your question goes this way..."how does oxygen enter the blood from the lungs?"Two types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated blood (blood that has received oxygen from the lungs) from the heart to the rest of the body. The blood then travels through the veins back to the heart and lungs, where it receives more oxygen.
left ventricle
The heart is divided into four compartments. The two upper portions where blood enters the heart from the body and lungs are the atria. Deoxygenated blood enters the right atrium, and oxygenated blood from the lungs enter the left atrium.
the left atrium...it pumps blood thereThe pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.
The flow of blood from the heart to the lungs and back to the heart is called the pulmonary circulation.The blood flowing from the heart to the lungs would be deoxygenated and blood flowing towards the heart from the lungs would be oxygenated.
The pulmonary artery carries blood from the heart to the lungs
All arteries carry blood from the heart to another organ in the body. The pulmonary artery carries blood from the heart to the lungs.
The pulmonary vein carries oxygenated blood away from the lungs, to the left atrium of the heart.
The pulmonary veins carry blood from the lungs back to the heart.