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Respiratory system: facts, functions and illnesses

The human respiratory system is a network of organs responsible for the uptake of oxygen and the excretion of carbon dioxide.Its main organ is lung, Perform this gas exchange when we breathe.

Lungs Circulatory system It sends oxygen-rich blood to all cells in the body. The blood then collects carbon dioxide and other waste products and returns them to the lungs. In the lungs, waste products are excreted from the body during exhalation. American Lung Association..

Respiratory system: facts, functions and illnesses

Source link Respiratory system: facts, functions and illnesses

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