Learn about the respiratory system, its parts, and how it works. See an interactive model of the respiratory system and find out about common diseases and disorders that affect it.

Your respiratory system is the organs and structures in your body that allow you to breathe. It includes your lungs, nose, mouth and the tubelike structures (airways) that connect them. You also have muscles and blood vessels that support your respiratory system, and ribs to protect it.

How does the respiratory system protect itself from potentially harmful substances in the air? Explain how the rate of breathing is controlled. Why does the respiratory system need the cardiovascular system to help it perform its main function of gas exchange?

Learn about the structure and functions of the human respiratory system, which facilitates gas exchange, regulates blood pH, and protects the body from harmful substances. See a diagram of the respiratory organs and their parts, and explore common conditions and tests affecting the respiratory system.

Learn about the human respiratory system, a network of organs and tissues that helps us breathe. See the diagram of the respiratory tract and its components, such as nose, mouth, pharynx, larynx, trachea, bronchi and lungs.

Human respiratory system, the system in humans that takes up oxygen and expels carbon dioxide. The major organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, lungs, and diaphragm. Learn about the anatomy and function of the respiratory system in this article.

Learn about the structure and function of the respiratory system, which provides oxygen to the body's cells and removes carbon dioxide. Explore the interactive 2D and 3D models of the airway, lungs, and muscles of respiration.

The respiratory system works as a whole to extract the oxygen from the inhaled air and eliminate the carbon dioxide from the body by exhalation. The upper respiratory mainly has an air-conducting function, while the lower respiratory tract serves both the conducting and respiratory functions.

This Osmosis High-Yield Note provides an overview of Anatomy and Physiology of the Respiratory System essentials. All Osmosis Notes are clearly laid-out and contain striking images, tables, and diagrams to help visual learners understand complex topics quickly and efficiently.