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Followings are the main functions of the respiratory system.

1. Regulates the breathing process

2. Exchanges gases at lungs and tissues

3. Facilitates the control of pH balance


The respiratory system provides us with essential gas exchange. It facilitates the diffusion O2 and CO2 gases between the atmosphere and blood, by bringing oxygen to the blood and removing carbon dioxide from it

Respiratory system consists of the lungs and the tubes that take air to and from them. It is divided into two regions, the upper and lower respiratory tracts.

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