The respiratory system plays an important role within the body. It is responsible for the transport of oxygen within the blood through gas exchange in the capillaries. This occurs in the capillary networks in your lungs. The respiratory system has close ties with the circulatory system and the nervous system as well. If you are wanting to learn more about the respiratory system, you are in the right place. We will go into detail about the structures and function of the system itself, the way the air moves through the system, completing one respiratory cycle, and how this effects the body. We will also give an example of a disease that effects the system.