because the pulmonary veins have deoxygenated blood, the pressure decreases as you move away from the initial site of oxygenation.
PO2 is higher in the pulmonary vein than it is in the pulmonary artery. It is the only place in the body where the oxygen level is higher in the vein than in the artery.
yes. because it pumps blood to the lungs.
The left hilum is higher than the right, due to the presence of the heart in the cardiac notch (in the left lung). 'The left hilium is situated slightly higher than the right pulmonary artery' (Miller 2006), and the hilium consists of the pulmonary artery, pulmonary veins and bronchioles. Reference: Miller W (2006) Diagnostic Thoracic Imaging. Chapter 14, p732
Blood traveling through the pulmonary veins is being returned to the heart from the lungs. The pulmonary veins have the distinction of being the only veins in the body which carry oxygenated, rather than deoxygenated blood.
I believe it has less carbon dioxide than other veins.
I believe it has less carbon dioxide than other veins.
arteries Arteries almost always carry blood higher in oxygen except the pulmonary arteries carry less. The carry blood from the heart to the lungs to pick up oxygen and drop off carbon dioxide. The pulmonary veins are different as they carry blood higher in oxygen than other veins. They carry this blood to the heart which in turn pumps this higher oxygenated blood to the rest of the body.
Usually, but not necessarily. A vein is a blood vessel that is returning to the heart, so it usually has a higher concentration of CO2 than an artery. But in the case of the Pulmonary vein, it is returning to the heart from the lungs, so it has a higher concentration of oxygen than carbon dioxide.
No, pressure is higher in the arteries.
Blood traveling through the pulmonary veins is being returned to the heart from the lungs. The pulmonary veins have the distinction of being the only veins in the body which carry oxygenated, rather than deoxygenated blood.
Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart. Veins are less muscular than arteries and are often closer to the skin.
The pulmonary artery carries blood from the heart to the lungs. The pulmonary vein carries blood to the heart from the lungs. Unlike all other veins and arteries in the body the pulmonary artery has de-oxygenated blood and the pulmonary vein has oxygenated blood.