Keep in mind that dissolved oxigen in blood is negligible in comparison to oxygen bound to hemoglobin. In addition, a bubble shows surface tension. This is exa

Keep in mind that dissolved oxigen in blood is negligible in comparison to oxygen bound to hemoglobin. In addition, a bubble shows surface tension. This is exactly the problem of divers who surface too fast: the excess of air dissolved in the blood due to higher pressure aggregates into bubbles. EDIT: By excess of air I mean Nitrogen. We don't have proteins to bind gaseous Nitrogen.