The Circulatory System and the Human Heart | David Rives

The Circulatory System and the Human Heart | David Rives

The circulatory, or cardiovascular, system is a wonder of engineering. Somehow your muscles, tissues, and each cell needs to be able to receive nutrients, expel wastes, and receive oxygen. Your body also needs to be able to transport proteins and hormones throughout. If foreign invaders get into your system, you need to be able to … Read More

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