Fecha de lanzamiento

01 Jan, 1959

Tiempo de ejecución

00:10: (HH:MM)

Sinopsis

Explains how the heart, lungs, veins, arteries, and capillaries work together in the process of circulation. Uses animation, cinefluorography, and a combination of artwork and a live subject to visualize the key functions. Suggests principles to help maintain healthy heart and lungs.

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