The latest research suggests your heart has a brain, and may be far more complex than imagined. This emotion, for example, boosts your heart attack risk five-fold, and your stroke risk three-fold.
The main function of the respiratory system is gaseous exchange. This refers to the process of Oxygen and Carbon Dioxide moving between the lungs and blood. Diffusion occurs when molecules move from an area of high concentration (of that molecule) to an area of low concentration.
The function of the respiratory system is to exchange gases between the body and the surrounding. environment. However, one would not want their lungs to open directly into the environment, as this. exposure would predispose to infection, deposition of potentially toxic substances, and would furthermore.