Contributed by: Healthians Team Introduction The average heart is about the size of an adult’s fist and is made up of the atria, ventricles, valves, and several arteries and veins….
heart diseases. heart diseases causes
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Contributed by: Healthians Team Introduction The average heart is about the size of an adult’s fist and is made up of the atria, ventricles, valves, and several arteries and veins….