The Heart and Circulatory System (simple) — free printable diagram

About this illustration

A labelled cross-section diagram of the human heart showing internal chambers, valves, and major vessels, alongside a simplified circulatory system diagram illustrating pulmonary and systemic circulation loops. A colour-coded legend identifies deoxygenated blood (blue) and oxygenated blood (red).

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.