Main Idea:
Gas Exchange, Air pressure
Principle:
Breathing: Mechanical Process in which air is drawn into and pushed out of the lungs. It is the first step to get oxygen to trillions of the cells in the body.
Gas Transport: It includes Oxygen Transport and Carbon DIoxide Transport.Oxygen is transported by hemoglobin in the red blood cells and then it transports Carbon dioxide to the lungs to breathe out.
Key Words:
CO2: Carbon dioxide
O2:Oxygen
Pharynx
Chest Cavity
Trachea
Bronchi
Diaphragm