endarterium
Endarterium is a term that refers to the innermost lining of a blood vessel. This layer is primarily composed of endothelium, which is a single layer of flattened cells. The endothelium plays a crucial role in maintaining vascular health. It acts as a barrier, regulating the passage of substances between the blood and the surrounding tissues. Furthermore, the endothelium is involved in various physiological processes, including blood clotting, inflammation, and the regulation of blood pressure.
The health of the endarterium is vital for preventing cardiovascular diseases. Damage to this layer can lead