Respiratory system

The respiratory system is responsible for gas exchange, oxygenating blood and expelling carbon dioxide. This system is governed by the lungs — comprising the bronchi, bronchioles and alveoli (tiny membrane-bound sacs where gaseous exchange occurs), the diaphragm, and supportive structures that maintain ventilation. Breathing patterns adapt to different physical demands, from rest to exercise, or environments such as high altitude. Effective respiratory function is essential for energy metabolism and pH balance. Conditions that affect the respiratory system include asthma, COPD, and bronchitis, as well as hayfever and rhinitis.

Explore our respiratory conditions articles to learn of the signs, symptoms, risk factors, disease mechanisms, and herbal and holistic solutions to illnesses affecting this system, to promote lung function and overall health.