Our Wonderful Body: The Heart and Its Work (1968)

Our Wonderful Body: The Heart and Its Work (1968)

1968-01-01 United States of America 10 Min. PG-13
0 0 votes

Overview

A young boy learns about his heart through the step-by-step construction of a simple circulatory system. He learns how his heart pumps, what blood and blood vessels do, how they do it, and some of the ways to help his heart stay healthy.