This simple human blood circulatory system working model (heart & lungs) is a great visual aid to help explain the complex workings of the human circulatory system

By creating a working model of the human circulatory system can be a great way to understand for students on how the heart, blood vessels, and blood work together to transport oxygen and nutrients throughout the body.
Here are the video steps to create a simple working model of the human blood circulatory system:
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Materials Required
- Cardboard
- Syringes
- Drip Set
- Color paper
- Fevicol
- Glue Gun