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Where does the air in your body go?

The air we breathe is mainly composed of oxygen and nitrogen. When we inhale, our lungs absorb the oxygen into the bloodstream for our cells to use, and then we exhale the unused oxygen along with carbon dioxide. The air we breathe eventually gets exhaled back into the atmosphere.


Why does the blood goes through the lungs on its journey around the body?

Seriously. I don't know but I think that it goes to get oxygen. I am 99.9 percent sure.


How pulmonary system and systemic system are differ from each other?

The pulmonary system is responsible for exchanging oxygen and carbon dioxide between the lungs and blood, while the systemic system delivers oxygen and nutrients to the body's tissues and removes waste products. The pulmonary system deals with gas exchange specifically in the lungs, while the systemic system involves the entire body's circulation of blood.


In the coronary circulation where goes the flow of blood go?

Pulmonary just means lung..... So from the lung it gets pumped back into the heart and then around the body


How does the concentration gradient help in the diffusion of gases in the lungs?

Just like particles of different charge are attached to each other, particles tend to go from place where's concentration bigger to places where there's lower. No energy is required for this process. Once, lungs are wide open, air goes in because the pressure in lungs is smaller than one around us. Blood that's full of CO2 comes into the lungs. Since there's more CO2 in the blood than there's in the lungs, and more O2 in the lungs than there's in the blood, O2 goes to the blood and CO2 goes to the lungs, thanks to this process. Then, the blood that full of O2 goes to the cells. Cells are always full of CO2 since they're constantly performing oxidation . Then, the same thing happens. CO2 comes out of the cells and goes to the blood since there's less of it in the blood, and O2 goes into the cells. Thanks to this particles trait, there's no energy that is used for O2 going to the blood and cells. I hope I made this more clear for you, and I'm sorry for my bad English.