This chart of the RESPIRATORY SYSTEM shows how you breathe.
Breathing is the process that brings oxygen in the air into your lungs and moves oxygen and through your body. Our lungs remove the oxygen and pass it through our bloodstream, where it's carried off to the tissues and organs that allow us to walk, talk, and move. Our lungs also take carbon dioxide from our blood and release it into the air when we breathe out.
The burden of lung disease is heavy in Canada. In particular, lung cancer, asthma and COPD exact an enormous human and economic toll. In 2014, lung cancer remains the leading cause of cancer death for both men and women, causing more cancer deaths among Canadians than breast, colorectal and prostate cancer combined.