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The journey of an oxygen molecule
8
The journey of the oxygen molecule
By Javier 9K
The inhalation
I was going shopping when suddenly a human ran in front of me, breathing me into his mouth.
Follow the path of Olly
The trachea
Me and my brother fell for what seemed ages until the paths diverged, we went right down the bronchi, left, left through the bronchiolis and right into an alveoli
Down to the lungs!!
The gas exchange
Everything was calm in the alveoli when suddently we got pulled through the wall! A red blood cell snatched us and took off too the heart
The gas exchange
The blood journey
we got close to the heart and you could feel its pumps in the veins, as we got close, a valve closed behind us.
we were in the heart.
The blood bus route
The pump
we went into the heart through the left atrium, past the bicuspid valve and into the left ventricle and pumped out to an artery.
The pump
The muscles
After another trip through the blood i ended in the bicep muscles, the human was lifting a box so the muscles were in use, i got diffused again and turned into water with two other hydrogen atoms.
I lost my brother
The muscles
The way back
We passed trough the heart again, through the right atrium, the right ventricle and we got pumped out again, i made it out through the lungs and went back home.