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2015-09-08T14:29:03+08:00
The circulatory system includes the heart, blood vessels and blood, and is vital for fighting diseases and maintaining homeostasis (proper temperature and pH balance). The system's main function is to transport blood, nutrients, gases and hormones to and from the cells throughout the body.Here are 11 fun, interesting and perhaps surprising facts about the circulatory system that you may not know.
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