During stimulation of breathing why does carbon dioxide even increase and oxygen horizontal halt?

During stimulation of breathing why does carbon dioxide even increase and oxygen horizontal halt?
I'm not sure that I understand your grill, exactly, but here is my answer to what I think you are asking!!
Carbon Dioxide (CO2) is a by-product of our respiration.
Air that we breath within is rich in oxygen, low contained by CO2. The oxygen goes within the blood to the cells. The cell use the oxygen to burn glucose, producing CO2 as one of the byproducts. The CO2 returns in the blood spinal column to the lungs.
Air that we breath out is low in oxygen, rich surrounded by CO2.
Sensory cells within the aorta respond to the CO2 level surrounded by the blood as it leaves the heart and send a stimulus to our nerves to breathe.
So, our urge to breath is driven primarily by our stipulation to get rid of CO2, not the have need of to get oxygen.
Some citizens with chronic lung diseases own unusually high level of CO2 in their blood. Their CO2 sensors become dulled, and a back-up system of oxygen sensors take over. They are breathing on a oxygen-drive. For these people, administering too-high concentrations of oxygen can actully mete out them to stop breathing.
I hope some of this information is what you are looking for.
MM
I don't understand pretty all right what you mean, but inside your brain here are some structures that detect how much carbon dioxide you have surrounded by your blood and depending on that number it increases or decreases your breathing shape.