Your health first (first lesson) - Respiratory system: breathing process

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Published on Jun 14, 2017
The process of respiration of the basic processes of the human body, it provides him with the necessary oxygen to the body and freeing him of carbon dioxide resulting from biological processes, which poses a threat to the human body, and passes breathing in several stages of the process starts from a man's nose and ends with the exploitation of oxygen within the energy processes which occur within cells