When we breathe, our bodies exchange gases with the environment in a process called breathing - or respiration. But why do we have to breathe? What organs do we use when we breathe? In this video, we explore breathing and our lungs. We also learn terms like alveoli, bronchi and diaphragm. Finally, we'll talk about how to keep our respiratory system healthy.

Originally released by Kunskapsmedia, 2020. Streaming video file encoded with permission for digital streaming by Infobase on July 07, 2022. Study guide available under Additional info tag.