The alveoli is where the oxygen moves out of the lungs and into the blood. At the same time carbon dioxide moves out of the blood and into the lungs to be exhaled.
Basketball is very rough and I know because I have played for 7 years. We should have more protection on our legs and maybe our arms because we do fall a lot and have to defend which gets very physical. I mean some do where knew guards but I think it should be a requirement
