
Respiratory System: Our Avenue for Gas Exchange
Breathe in, breathe out.
Oxygen goes in, carbon dioxide goes out. Sounds simple enough, but your respiratory system — composed of your lungs, trachea, sinuses, and sundry microscopic helpers — works a grueling 24/7 job just to keep your blood oxygenated, and your body alive. Learn all about the air you breath (and the respiratory organs that make it possible) here.
Related Topics: Smoking, Circulatory System, Vaping, Pollution