Information about any two diseases each affecting the human Digestive system, Circulatory system and excretory system with pictures.
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circulatory system: The body circulatory system,also called the cardiovascular system consist of the heart and the blood vessels that run throughout the body.
Excretory system: Excretory system regulate the chemical composition of body fluids by removing metabolic wastes and retaining the proper amount of amounts of water,salts and nutrients
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