1. bloodstream; blood flow
Wikipedia definition
2. Blood flowBlood flow is the continuous running of blood in the cardiovascular system. The human body is made up of several processes all carrying out various functions. We have the gastrointestinal system which aids the digestion and the absorption of food. We also have the respiratory system which is responsible for the absorption of O2 and elimination of CO2 . The urinary system removes waste from the body. The cardiovascular system helps to distribute food, O2 and other product of metabolism.
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