Endothelial Cells: These are cells that line the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall.
Capillaries:These are the smallest blood vessels in the body's circulatory system, involved in the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and surrounding tissues.
Angiogenesis:This is the physiological process through which new blood vessels form from pre-existing vessels, involving proliferation and migration of endothelial cells