Cardiovascular System Guide: Heart Health & Exercise Effects

What are the four parts of the cardiovascular system? Understand how exercise, smoking, and serotonin influence heart health and normal cholesterol ranges.

heart model and electrocardiograph

The 4 Parts of the Cardiovascular System

The main purpose of the cardiovascular system is to transport blood rich in oxygen and nutrients to cells in the body and transport waste products in the blood to the appropriate system for elimination. The cardiovascular system plays many important roles, including the maintenance of body temperature.

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