El aparato circulatorio

The video explains the circulatory system, highlighting its role in transporting nutrients, oxygen, and waste. It details the composition of blood, including plasma and various blood cells like red and white blood cells and platelets. The video also covers the types of blood vessels—arteries, veins, and capillaries—and their functions. Finally, it describes the heart's structure, its chambers, and how it pumps blood throughout the body, emphasizing the processes of systole and diastole.

What new insight or understanding did you gain from this video?