The respiratory system is the bodies system that introduces gases into the body and releases waste gases through breathing. The main function is to transport air into the lungs, facilitate the diffusion of oxygen into the blood stream, and exhale carbon dioxide from the blood through exhaling. The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration. It provides the cells with oxygen that plays an important role in many metabolic processes of cells. Also, it results in the removal of carbon dioxide gas from the body which can be toxic. The respiration takes place by some special organs of the body. These include the lungs cavity and the nasal cavity predominantly.

Hima Xavier

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