Watch Mr Wizard – How Your Blood Circulates (1963)

Explains by model and by examination of a calf heart how the heart functions. Demonstrates how to make a simple stethoscope.

We digitized and uploaded this film from the A/V Geeks 16mm Archive. Email us at footage@avgeeks.com if you have questions about the footage and are interested in using it in your project. watch-mr-wizard-how-your-blood-circulates-1963