The Respiratory System and Gas Exchange (detailed) — free printable diagram

About this illustration

A detailed, multi-panel diagram of the human respiratory system. The main panel shows a sagittal/anterior view of a human torso with labelled structures from nasal cavity to diaphragm. An enlarged inset (top right) shows alveoli with capillary network and gas exchange arrows (O2 in red, CO2 out in blue). Two lower panels illustrate the mechanics of inhalation (diaphragm flat) and exhalation (diaphragm domed) with annotated rib-cage diagrams and a central gas exchange summary box.

How to use

1. 1Right-click the image and choose “Save image as”, or use the download button.
2. 2Use it in your classroom worksheets, slides or printables — free under CC BY-NC 4.0.
3. 3Attribute as “Image by Kuraplan” or link back to kuraplan.com. Not for commercial resale.