Oxygen of course(:and many vital nutirents
Yes.
The heart and your blood vessels
It does not. Arteries bring blood away from the heart and veins bring blood to the heart. In the case of the pulmonary artery, it takes un-oxygenated blood from the heart to the lungs. Oxygenated blood from the lungs is then returned to the heart via the pulmonary vein.
arteries to all parts of body (except pulmonery artery to lungs) and pulmonery vein to lungs
The pulmonary veins bring oxygenated blood from the lungs to the left atrium of the heart.
The inferior and superior vena cavas bring blood from the body to the right side of the heart. The pulmonary veins bring blopd from the lungs to the left side of the heart.
The heart pumps blood to the lungs to be reoxygenated. Valves in our veins and the muscle contractions of our legs helps bring blood from the lower limbs to the heart.
The fetus does not use its lungs to bring oxygen to the blood. (apex)
Pulmonary arteries are those which take deoxygenated blood from the RIGHT VENTRICLE to the lungs through the ALVEOLUS back to the LEFT ATRIUM. The LEFT ATRIUM receives oxygenated blood from the lungs and is pumped by the heart to the LEFT VENTRICLE and then to the rest of the body. It is ironic that Arteries do carry oxygenated blood but PULMONARY ARTERY carries deoxygenated blood and veins carry deoxygenated blood but the PULMONARY VEIN carries oxygenated blood.
Lungs
Lungs
Lungs