The circulatory system works like a network of highways, superhighways, and narrow streets. But in this case, the highways are a means of delivering nutrients to major organs and carrying away wastes and toxins. Using this analogy, the video explains and illustrates the systemic and pulmonary routes, the structure and function of the heart, the network of arteries and veins, as well as the different roles and components of blood. Other topics include blood pressure, anemia, leukemia, heart failure and heart attack, the effects of cocaine and smoking on the heart, and the vital role of exercise in maintaining a healthy heart. 26 minutes. © 2001, 2005.
Part of the Amazing Adventures Inside The Human Body Video Series.
