# Mr Wizard - How Blood Circulates

Mr Wizard 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.

- Kind: Film
- Year: 1963
- Genres: Industrial and advertising
- Archive: [Internet Archive](https://archive.org/details/HowBloodCirculates)
- Licence or status: none stated by the archive
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/ia/HowBloodCirculates?play=1)