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By: Jana, Trinity,& Collin We are doing the Circulatory system. The major functions of the Circulatory systems to deliver oxygen and nutrients to all pair of the body and to remove waste. The human heart When we breathe in our lungs take in oxygen. The oxygen passes in our blood into our blood vessels in the lungs. 1. One drop of blood contains half a drop of plasma, 5 million red blood cells, 10 thousand white blood cells, and 250 thousand platets. 2. The human circulator system conits of vessels muscles and origins that help and control the flow of the blood lymph around the body. 3.The heart pumps blood thought the body. Why is it called the circulatory system? Its called the circulatory system because it controls your circulation. How does blood keep us alive? Blood goes everywhere in our bodies and carries everything our bodies need to live. How does the circulatory system work? The heart pumps the blood through the veins. A special thanks to……… Buzzle.com Hes.ucfsd.org Dictionary.com hu.wikipedia.org