avgeeks1and1Explains 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. Buy this film on DVD. [wp_cart_button name=watch-mr-wizard-how-your-blood-circulates-1963 price=12.95][show_wp_shopping_cart]