|This is a complete diagram of the human respiratory system. The respiratory system consists of the airways, the lungs, and the respiratory muscles that mediate the movement of air into and out of the body. A numbered version is also available. Click on the image for a full size version which you can freely re-use and modify. Print it and use it for your lessons, integrate it into your pages on Wikiversity, or use it in other learning resources and websites. Use the links below to find more images like this one.