Respiratory system

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The respiratory system works in partnership with our cardiovascular system to supply the body with oxygen and remove carbon dioxide. Air is conducted into our lungs by a system of respiratory passageways (the respiratory tract). Gas exchange then occurs, supplying the blood with oxygen and ridding it of carbon dioxide.

The respiratory system has other functions too; it filters, humidifies and warms the incoming air, and it plays an important role in maintaining the acid-base balance of the blood.

Watch the following video to learn about the main organs of the respiratory system.

If you’d like to take a closer look at the respiratory system organs, watch the following video

To improve your understanding of respiratory system terminology, take a closer look at some commonly used roots, prefixes and suffixes related to the respiratory system in the video below.

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Now that you have watched our respiratory system videos check your knowledge by taking the following quiz.

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Download the following PDF worksheets and learn the different parts of the respiratory system.

Browse atlas

For a more detailed view of the respiratory system, including some of the surrounding structures take a look at the atlas gallery below.

Summary