I first encountered this piece of knowledge when I was reading The Immortals of Meluha by Amish Tripathi. So, lets find out why?
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What Happens when you Breathe in Oxygen?
Once you inhale oxygen, it travels through the air pipe to the left and right lung. The lungs have bronchioles which end up in balloon-like air sacs called the alveoli. These air sacs have thin membranes of capillaries through which the blood flows and the gas exchange of oxygen and carbon dioxide happens.
When you inhale, the oxygen moves across the thin membranes in the alveoli to the blood where it is absorbed by the haemoglobin and at the same time, the blood releases carbon dioxide into the air sacs to be breathed out of the body.
[Read more…] about What are Free Radicals?Freshly oxygenated blood is carried from the lungs to the heart which pumps blood around the body through the arteries. Once the oxygen has been used up in the tissues of the body, the blood returns, through the veins, to the heart.[1]