Now, let's move on to our lungs. What exactly takes place inside our lungs? So, basically, inside the lungs, we also have the chloride shift that exists, but it takes place in the opposite direction. And that's because the entire purpose of the tissue is to take the CO2 and bring it into the red blood cells. But the entire purpose of the lungs is to take the CO2 from the red blood cell and bring into the space of our alveoli, which ultimately expels that CO2 during the process of exhalation. So let's see what takes place.