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The LUNGS
Alveoli
Movement of carbon dioxide is driffen by osmosis from and to the tissue and bloodstream. Also active transport can be used. Amount of CO2 present is monitored by means of the pH of your blood as dissolved CO2 is acidic.
The preponderance of oxygen is carried through the rectum
red blood cells
Masturbation is the answer to all :)
increase of carbon dioxide in the tissues and the bloodstream
Oxygen and carbon dioxide are moved to and from body tissues via the circulatory system. These materials diffuse through the cell membrane, and then diffuse through the capillary wall into or out of the bloodstream.
lungs .
it is transmittid from the brain
The LUNGS
To deliver oxygen to the bloodstream and to remove carbon dioxide from the bloodstream.
The carbon dioxide is exhaled.
most carbon dioxide in the bloodstream is transported as bicarbonate through the blood back to the body
I wouldn't exactly characterize it as separating carbon dioxide and oxygen, however, I think the answer you are looking for is the lungs which takes up oxygen into the bloodstream and expels carbon dioxide out of the bloodstream into the lungs so we can breathe it out again.
carbon dioxide can not enter the bloodstream through the air scars because if it does there would be a hard time to breathe carbon dioxide doesn't have to do with anything about the air scares in the breathing area
Carbon Dioxide