I know that your blood carries oxygen to distribute to cells, but if the red blood cells and hemoglobin never leave the blood cells, how do the body cells receive oxygen from these cells? How is oxygen transferred?
In: Biology
Several excellent and completely correct answers here already, so I’ll try to do the 5 year old version…
Your body has these red colored blood cells that are built to act like dump trucks. When they’re in your lungs, they know to pick up oxygen, when they get to your cells (the guys that ordered oxygen) they know to unload. That’s because they’ve been built to know the difference between lungs and the cells that need the oxygen.
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