In order to survive, every living cell in the body needs a constant supply of oxygen and nutrients and needs to have wastes removed. In this interactive game, you'll follow a small sample of blood as it travels throughout the body. The goal is to keep a few cells located at the tip of the nose alive and healthy. At various locations within the body -- locations that include the lungs, small intestine, pancreas, lymph nodes, and the target cells -- you will need to pick up or deliver oxygen, nutrients, hormones, carbon dioxide, and bacteria.
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