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Nervous Tissue 11 Epithelial Tissue 12
Epithelial Membranes 12 Exocrine Glands 14 Connective Tissue 14
Organs and Systems 17
An Example of an Organ: The Skin 18 Systems 19
Body-Fluid Compartments 19
Summary 20 Review Activities 21 Related Websites 21
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Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...