The structure of human body is an amazing machine. This site provide information related to human parts as skeleton, the heart, the brain, and the digestive tract, and how they function. Learn more about the human body article, Video, image at this site.
This system functions like the circulatory system except
that it flows only one way into the heart. It transports fluids between
tissues and the bloodstream, and transports cancerous cells and other
waste products from tissue to tissue.
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