Exploring Earth's Interior: Layers, Thickness, and Tectonic Roles Explained Dive into the fascinating structure of Earth's interior in this clear and detailed instructional video. Learn about the crust, lithosphere, asthenosphere, mantle, outer core, and inner core, including their relative thicknesses and how they contribute to tectonic activity. Perfect for students, educators, and Earth science enthusiasts seeking a comprehensive overview. Visual graphics enhance understanding of each layer's

Plaque formation inside blood vessels begins when the inner lining becomes irritated by high cholesterol, smoking, high blood pressure, or inflammation. The inner lining is a thin layer of cells called the endothelium. When it becomes stressed, tiny openings form that allow cholesterol rich particles to slip beneath the surface. These particles settle in the vessel wall where they become oxidized. Oxidized particles trigger an immune reaction that attracts white blood cells. The white blood cell