oxigen in it's pure form is mostly used in hospitals for treatment of patients with poor breathing.
The correct spelling is oxygen (element, a gas present in Earth's atmosphere).
No, you do not.
The pulmonary artery carries de-oxygenated blood away from the heart to the lungs where is become oxygenated and returns to the heart via the pulmonary vein
oxygenated
Nothing. The Villager can run any normal ethanol-oxygenated gas up to 15% with no problem.
Oxygenated
because the gas under the ocean that sinks ships and air craft is oxygenated in the water.
oxygenated fluorocarbons are indeed real and experiments have shown that you can place a mouse in it and it will stay alive however it is not easy to get the fluid out of the lungs afterwards. As a result it is not used for humans in scuba diving in the way it has been portrayed in things like the film; the Abyss. For one thing it would be hard to fill all of the gas pockets in the body, such as the sinuses and pressure on the body would also effect how various physical processes take place. These would probably limit the depth a diver could achieve even if oxygenated flurocarbons were used.
oxygenated blood oxygenated blood oxygenated blood
Respiration
Oxygenated blood is carried by all arteries but one which is the pulmonary artery
Alveoli are tiny sacs in the lungs that perform gas exchange. That is the main process of respiration where the body gets rid of carbon dioxide and picks up oxygen which is used in metabolism. They have supply of oxygenated and de-oxygenated blood surrounding their surface giving them a high blood supply. They also have thin walls and a moist surface. This is all required for them to work correctly.