Playing is Learning
The Respiratory System
May 14th, 2015
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Welcome to the World of PROFESsee™by seeCOSM™ PROFESsee™ is my title. I am the perpetual learner, in pursuit of knowledge, wisdom and truth. I derived my name from professor |
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Long, sharp and aristocratic looking Caucasian nose, broad African nose, broken, terrifying nose like that of Mike Tyson the pugilist… all types of noses, but one thing they share in common is that they are the beginning of the human respiratory system. That is where the journey of the air to the lungs, to take in the much-needed oxygen for metabolism purposes begins. Oxygen delivery is the main purpose of the respiratory system. Oxygen rich air is inhaled and carbon dioxide is exhaled, through the nose of course. Your nose has hair, no? Horrible little buggers if they are pulled, so very painful. These hairs purify the air that is going into the lungs. The ribs are there to support the chest cavity. The main recipient of the air that you breathe in is the lungs, two of them. The right lung has three lobes and the left lung has two. There, caught you flat-footed in that one, you thought both of them had equal number of lobes, if you are lucky to know what lobes are. When a person breathes in through the nose or mouth, the air will go into the trachea, which in turn branches into the bronchial tubes that go into the lungs. The tubes branch further to bronchioles. All these are air passages that make the passage of air to the bloodstream easier. At the end of the bronchioles there are tiny air sacs called the alveoli from which the air enters the blood stream. Then the blood will leave the lungs and go back to the heart where it is pumped into different parts of the body, to supply oxygenated blood. That simply is how you stay alive. The human body is perfectly engineered in all aspects, but most important is how the air you breath in gets into the bloodstream and is then taken all around the body tissues and muscles. It’s a marvel, isn’t it? Can you Assemble the respiratory system? Image courtesy of: http://www.123rf.com/photo_13757465_3d-rendered-medical-x-ray-illustration--lungs-anatomy.html |
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