Introduction
Circulatory system is one of the body systems. In association with other body systems, it supplies oxygen and nutrients to the entire body (Bjorklund, 5). The system is made up of three main parts namely the heart, blood vessels, and blood (Bjorklund, 5; Vijayalakshmi, Rao, and Reema, 839). The heart pumps blood to the lungs and throughout the body through a complex network of blood vessels. On the other hand, blood carries oxygen, nutrient, and wastes to different parts of the body.
Heart rate is the number of times one’s heart beats per minute. In the experiment, my
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