الجهاز الدورى والدوران: القلب

The video explains how blood circulates through the body, driven by the heart, a muscular organ located between the lungs. It details the heart's structure, consisting of four chambers: two atria and two ventricles, each separated by valves that ensure unidirectional blood flow. The video concludes with a summary of the heart's anatomy and the role of valves in maintaining proper circulation.

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