if blood is oxygenated once it leaves the lungs what happens to the lungs?

Answer 1

I don't quite understand where the question lies in that... but basically the blood passes through the little bits in the lungs, when there the haemaglobin in the blood gets oxygenated and becomes oxyhaemaglobin, which is then used by muscles etc. to produce energy, when the oxyhaemaglobin is de-oxygenated it travels back to the lungs.

(From what I can remember) :S!

Answer 2

I suggest you check out Google links for human circulatory system.

The lungs are inflated when the diaphragm pulls downward, drawing in air. The oxygen in the air passes through the alveoli in the lungs and is absorbed into the red blood cells (which change from a bluish color to red). The heart pumps the blood through the lungs, then into the rest of the body. The red blood cells give up the oxygen to body tissues, and return through venous flow to the lungs, where the cycle is repeated.

When the diaphragm relaxes, the lungs collapse and push the remaining air and CO2 out; then the diaphragm once again contracts, expanding the lungs and filling them with new air.

Answer 3

it continues to oxygenate the blood that is constantly returning to the lungs to be oxygenated and at the same time it is helping to get rid of the carbon dioxide

Answer 4

What the heck do you mean? They just keep working to maintain the blood oxygen level. It's an involuntary act.

Answer 5

They pick up more oxygen on the inhale ?

Answer 6

they pull the co2 out of the blood thats comming back in and exhale it.

Answer 7

Are you for real ? they pump oxygen to the brain but you seem to have a malfunction in yours