Circulatory System Diagram — free printable diagram

About this illustration

This brightly colored, flat illustration depicts the human circulatory system within a cartoon-style child's body, rendered with a light skin tone. The diagram clearly shows arteries in red and veins in blue, originating from and returning to the central heart, with other internal organs like lungs, liver, and kidneys also visible. Key components such as Superior Vena Cava, Pulmonary Artery, Pulmonary Vein, Heart, Inferior Vena Cava, Aorta, and Capillaries are explicitly labeled with callouts. This image is ideal for teaching elementary and middle school students about human anatomy, the functions of the heart, and the path of blood circulation. It could be used effectively in a science lesson slide, as a worksheet for labeling activities, or for direct instruction on major blood vessels.

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.