The cornea of the eye is the part of the body that receives no blood supply but instead gets its oxygen directly from the air.
the respiratory system
Oxygen is not the problem, the issue is body
When your blood cells go to your lungs to get oxygen, they also release carbon to make room for the oxygen, then when you breath out, the carbon gets into the air.
The blood gets oxygen from the lungs during the process of respiration. Oxygen is inhaled into the lungs, where it diffuses into the bloodstream via tiny air sacs called alveoli. This oxygenated blood is then pumped by the heart to the rest of the body.
It comes from the fluid around your cells, which gets it from your tiny capillary blood vessels, which gets it from your arteries, which gets it from your lungs, which gets oxygen from the air you breath, which gets it from plants and reactions of materials on earth with the sun's powerful emissions which strike the earth.
it gets it oxygen from little holes on the body
The process of obtaining oxygen from the air we breathe is known as respiration. During respiration, the lungs take in oxygen from the air and deliver it to the bloodstream, where it is then transported to the body's cells to produce energy through a series of chemical reactions.
Your body needs oxygen, which is picked up by the blood from the air in your lungs and then pumped around your body by the heart. If you need more oxygen (by working harder) then your heart has to pump faster.
Oxygen rich air enters the body through the lungs.
plants give off oxygen and so do animals and that's how it gets in the air
The lungs are the only organs in the body that receive oxygenated blood supply. Oxygen from the air we breathe diffuses into the blood vessels in the lungs and gets carried to the rest of the body.