C02 is absorbed into the blood stream, the resperatory feedback system is C02 dependent. It follows that resperatory rate would increase, and therefore would also increase 02 levels as a result of the increased resperation.

Hmmm...possible. But I would think that most of the CO2 is lost in belching.

I also do not recall where the CO2 is checked by the body, whether in the blood stream or elsewhere.

I also do not recall where the CO2 is checked by the body, whether in the blood stream or elsewhere.

If I'm not mistaken, our body moniters c02 and not oxygen - it is what gives us the desire to breath when we hold our breath ect. -
c02 is what makes champange work so fast, because it is absorbed into our blood so quickly - taking the alcohol with it. Prob. it increases the total amount of vapor pressure in the upper digestive tract.

I think you might be right - I found this on the web:



Control of Ventilation by PO2, PCO2, and H+ Concentration
Control by P02 and PC02
Peripheral chemoreceptors called carotid bodies and aortic bodies are in close contact with arterial blood and are stimulated by a steep decrease in arterial PO2 and an increase in H+ concentration. They give inputs to medulla.
Control by H+ not due to CO2
Lactic acid in exercising muscles can cause metabolic acidosis or metabolic alkalosis, changing H+ concentration and stimulating peripheral chemoreceptors.


Control of Ventilation during Exercise
Blood PCO2, PO2, and H+ concentration due to CO2 do no change much during exercise due to compensatory hyperventilation. Change in H+ concentration due to lactic acid, input from mechanoreceptors in joints and muscles, increase in body temperature, increase in plasma epinephrine, etc. play important roles in stimulating ventilation.