Welcome to our online class on the cardiovascular system! We will explore one of the most essential and fascinating systems in the human body. The cardiovascular system, also known as the circulatory system, forms the life-sustaining network that delivers oxygen and nutrients to every cell and removes waste products efficiently. It is made up of the heart—a powerful muscular pump—and an extensive network of blood vessels, including arteries, veins, and capillaries. This system not only regulates blood flow but also helps maintain body temperature, pH balance, and protects the body through immune responses.
Our session will start with an overview of the basic components: the structure and function of the heart, the types of blood vessels, and the pathway of blood circulation throughout the body. We will then discuss how the cardiovascular system interacts with other body systems and the crucial role it plays in maintaining health. By the end of this class, you will have a deeper understanding of how your heart and blood vessels work together to keep you alive and healthy—laying a strong foundation for future learning in biology and medicine. I encourage you to ask questions and actively participate as we unravel the wonders of the cardiovascular system together!