Living Lung is a free iPad app from iSO-Form Medical. The app provides an interactive 3D model of human lungs. Users of the app can speed up or slow down the respiratory rate of the model. This free educational iPad app also allows users to add or remove labeled layers of the respiratory system. And as you might expect you can zoom in, zoom out, and rotate the model on your iPad.

Applications for Education
Living Lung could be a fantastic app for anatomy students to use to explore how human lungs work. It may be interesting to see how the model changes as you increase or decrease the number of breaths per minute the model takes.