How is the harmful metabolic product, carbon dioxide, released from the body?

Let’s consider everything on the example of a person. We have a respiratory and circulatory system, the work of which provides our cells with oxygen. Carbon dioxide is constantly released in the process of cell activity. This gas leaves our body in the same way that oxygen enters the body. Red blood cells are able to bind not only with oxygen, but also with carbon dioxide. Oxygen is replaced by carbon dioxide and returns through the veins to the capillaries of the lungs, where carbon dioxide will be replaced by oxygen molecules.