The respiratory system

Jeremy P T Ward, Jane Ward, Richard M Leach Lungs The respiratory system consists of a pair of lungs within the thoracic cage Its main

The lungs and respiratory system allow us to breathe They bring oxygen into our bodies and send carbon dioxide out (called

system789 Since the lungs process air, they are the only internal organs that are constantly exposed to the external environment Central to the human respiratory system

muscular system The respiratory system starts at the nose and mouth and continues through the airways and the lungs Air enters the respiratory system through the nose and