The document summarizes key aspects of the circulatory system including:
- The major parts of the circulatory system including the heart, veins, and arteries.
- The heart pumps oxygenated blood through the arteries and deoxygenated blood returns through the veins.
- The circulatory system interacts with other body systems to transport materials throughout the body and helps maintain homeostasis, for example by regulating body temperature.
- Some common diseases that can affect the circulatory system are discussed like heart attacks, aneurysms, and leukemia. Blood clotting and common questions are also addressed.