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human respiratory system
physiology
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External Websites
- University of Michigan - The Mechanism of Human Respiration in Detail
- Biology LibreTexts - Structure and Function of the Respiratory System
- MSD Manual - Consumer Version - Overview of the Respiratory System
- Kids Health - For Parents - Lungs and Respiratory System
- Healthline - All About the Human Respiratory System
Britannica Websites
Articles from Britannica Encyclopedias for elementary and high school students.
human lungs
human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide. The human gas-exchanging organ, the lung, is located in the thorax, where its delicate tissues are protected by the bony and muscular thoracic cage. The lung provides the tissues of the human body with a continuous flow of oxygen and clears the blood of the gaseous waste product, carbon dioxide. Atmospheric air is pumped in and out regularly through a system of pipes, called conducting airways, which join the gas-exchange region with the outside of the body. The airways can be divided into upper and ...(100 of 15474 words)