The Circulatory System
The circulatory system includes the organs and tissues involved in circulating blood and lymph through the body, and it plays an important role in delivering nutrients to our cells and removing waste products. The Circulatory System Web Guide gives you a selection of the best sites on the circulatory system, divided by complexity level.
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Expand All Guide SectionsCirculatory System Basics
Perhaps you’ve started a new exercise regimen and want to know why you’re getting so ... read more »
The Circulatory System for Kids
If you’re a teacher looking for ways to make learning about the human body fun and ... read more »
Advanced Circulatory System Resources
If you’re a professor looking for images to supplement your lectures, a researcher looking ... read more »
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