2006-09-30 00:35:54 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Because it carries blood from the heart to the lungs, the very last step before the blood gets re-oxygenated. It is the only artery in the body to carry de-oxygenated blood.
2006-09-30 00:38:25 · answer #1 · answered by teef_au 6 · 2⤊ 1⤋
By definition, arteries are the blood vessel that direct blood away from the heart. In the case of four chambered hearts like those of human beings, the blood coming back from the rest of the body -- therefore low in oxygen and high in CO2 -- is directed through the veins to the heart where it is pumped out and sent to the lungs for the much needed oxygenation process.
That blood goes to the lung through the pulmonary arteries, and comes back -- now rich in oxygen -- through the pulmonary veins. The heart then pumps this blood out of the lungs and back to the rest of the body through the non-pulmonary arteries.
So, the reason is that it is low on oxygen because it it has not been oxygenated yet. Any confusion comes from the definition of artery, which means a blood vessel directing blood away from the heart, while some may believe it means a vessel containing oxygenated blood; which is true only for non-pulmonary arteries.
2006-09-30 00:45:51 · answer #2 · answered by Vincent G 7 · 0⤊ 1⤋
Interestingly, the pulmonary artery is the only artery in the body that transports deoxynated blood. This artery carries blood from the left ventricle to the lungs so that blood can be oxygenated.
2006-09-30 09:58:00 · answer #3 · answered by Timdog 1 · 0⤊ 0⤋
Pulmonary arteries
The pulmonary arteries carry deoxygenated blood that has just returned from the body to the lungs, where carbon dioxide is exchanged for oxygen.
2006-09-30 03:40:41 · answer #4 · answered by questiongirl14 2 · 0⤊ 0⤋
The pulmonary artery low in oxygen because it carries blood from the heart to the lungs. This blood is de-oxygenated as it is the connection between the arteries and the veins . The pulmonary vein in turn carries oxygenated blood from the lungs to the heart. The naming is based on whether the blood is being transported to the heart (venous) or is being transported away from the heart (arterial).
2006-09-30 00:45:36 · answer #5 · answered by jrkeamore 1 · 0⤊ 1⤋
Pulmonary artery bring the blood to Lungs, from all other parts of the body- for purification (or re-oxygenation) so it has more of carbon dioxide and less of oxygen.
The pulmonary vien carries the blood from Lungs top heart, this one is rich in oxygen and is thus supplied to all the parts of the body through heart.
2006-09-30 00:41:10 · answer #6 · answered by dickwettingtown 2 · 0⤊ 0⤋
becuase it carry's blood from the heart to the lung.
note:
The pulmonary artery, is the only artery in the entire body that carry's low oxygen blood.
And the pulmonary veins are the only veins in the body wich carry high oxygen blood.
2006-09-30 02:57:59 · answer #7 · answered by Anonymous · 0⤊ 0⤋
The term artery means a blood vessel that carries blood AWAY from the heart.
Most blood pumped out by the heart is pumped out by the left ventricle. This is oxygenated blood, originating from the lungs, that supplies oxygen to the tissues. Once deoxygenated it is carried back to the heart in the veins. However, once this deoxygenated blood is back in the heart (right ventricle) it needs to go through the lungs to be re-oxygenated.
The blood vessel that goes from the right ventricle to the lungs is the pulmonary artery. So it is an artery, because it carries blood AWAY from the heart, but the blood is low in oxygen because it is basically deoxygenated venous blood that is awaiting reoxygenation in the lungs.
2006-09-30 00:42:02 · answer #8 · answered by the last ninja 6 · 1⤊ 1⤋
pulmonary artery is the artery which carries oxygenated blood to the heart
blood in the pulmonary artery is low because it has been come from our body parts . our body uses the oxygen for energy and release carbon dioxide this carbon dioxide enters our blood and in this way our blood in the pulmonary artery is de-oxygenated
2006-09-30 04:31:54 · answer #9 · answered by shagun 2 · 0⤊ 1⤋
Because this is the only artery which carry de-oxygenated blood.
2006-09-30 11:48:45 · answer #10 · answered by moosa 5 · 0⤊ 0⤋