Overview of the Respiratory System
Major Components of the System
Inhaled (or inspired) air travels through the oral or nasal cavities, pharynx, larynx, trachea, bronchi, bronchioles and alveoli. Inspiration is caused by contraction of the external intercostal muscles and diaphragm. Expiration occurs when these muscles relax.
Respiratory pigments, such as hemoglobin, enable the blood to carry more oxygen. Hemoglobin also helps to transport carbon dioxide.
Keywords: respiratory system | human | lungs | nasal cavity | oral cavity | hemoglobin | pharynx | larynx | trachea | bronchus | lung | diaphragm
- Raven, P.H. (2005). Biology, 7th Edition. New York, NY: McGraw-Hill.
- OpenStax College. Organs and Structures of the Respiratory System, OpenStax CNX CC-BY-3.0. July 8, 2013.
- Campbell, N.A., and Reece, J.B. (2008). Biology, 8th Edition. San Francisco, CA: Pearson Benjamin Cummings.
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