¶ … scientific effects of smoking on the human body especially on the respiratory and cardiovascular systems. We will give a brief analysis on how smoking affects the mentioned systems and see how the human body system works if the individual does not smoke. We will also support our paper with scientific and statistical evidence regarding the facts related to smoking.
Smoking and its effects
Before looking at smoking and its effects lets review on how the respiratory and cardiovascular systems work. When we breathe air it first enters Trachea/windpipe through which it enters on each of the bronchi present at both of the lungs. The bronchus is spread throughout the lungs like branches on trees and at its tips is as thin as a hair (bronchioles). Each lung has about thirty thousand bronchioles. At the tip of every bronchiole lies an area which leads to tiny air sacs known as alveoli. Every alveoli has the covering of very small blood vessels known as capillaries, the capillaries are so small that blood's cells line up in a single file through them.
Whenever we breathe the air passes through the windpipe and goes through bronchus towards the alveoli, here the oxygen from the air we breathe is transferred to the blood cells as they line up in capillaries. A similar process goes in reverse when we exhale air out of our system. Here instead of transferring oxygen to the blood cells the carbon dioxide is driven...
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