RED RIVER OF LIFE (2 films)

Part 1. 29min. Describes the working of the heart, picturing the valves of a beating human heart from the inside and outside. Uses photomicrography to show the functioning of the circulatory system. LC card Fi A 58-1019. Part 2. 33min. Demonstrates the chemistry of the red blood cell and its ability to take on oxygen and give off carbon dioxide; shows tests to determine the optimum shape for the red blood cell; and discusses the correlation of blood to physical and spiritual life. LC card Fi A 58-1020.