the oxygen releases carbon dioxide
Oxygen levels in the blood are measured with a pulse oxymeter that measures by shining a light through the finger tip, with or blood gas tests run in a laboratory. Lab could be venous or arterial, usually arterial.
With increased breathing, levels of carbon dioxide in the blood drop and levels of oxygen rise.
Blood flows through veins after delivering oxygen to the body.
When your oxygen saturation levels drop, your blood is not carrying enough oxygen to provide your body the levels it needs. If they drop low enough, your body will shut down and you can die. If you are hooked to a ventilator, this will help the body increase the oxygen saturation levels in your blood, potentially saving your life.
When you warm up your blood runs through your blood arteries and creates oxygen for your body :)
As blood moves through the lungs, oxygen is exchanged for carbon dioxide. Oxygen diffuses from the air in the lungs into the blood, increasing the oxygen level in the blood. Conversely, carbon dioxide diffuses from the blood into the air in the lungs, decreasing the carbon dioxide level in the blood.
Oxygen levels go up while CO2 levels go down. In the lungs, oxygen is absorbed into the blood while carbon dioxide is eliminated through exhaling.
There is an exchange with oxygen, nutrients, and carbon dioxide and water vapor.
chemoreceptors
Oxygen
Deoxygenated blood is blood that has low levels of oxygen and high levels of carbon dioxide. It is typically darker in color compared to oxygenated blood. Deoxygenated blood circulates through the body to deliver carbon dioxide to the lungs for removal.
As blood flows through capillaries, it exchanges nutrients, wastes, and oxygen with body tissues. This transfer is accomplished via diffusion.