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  1. Endothelium - Wikipedia

    The endothelium (pl.: endothelia) is a single layer of squamous endothelial cells that line the interior surface of blood vessels and lymphatic vessels. [1] The endothelium forms an interface between …

  2. What is the Endothelium? - Cleveland Clinic

    What is the Endothelium? Your endothelium is a large organ that plays a key role in keeping your blood moving smoothly through your body. It’s made up of over a trillion endothelial cells, which release …

  3. What to know about the endothelium - Medical News Today

    Apr 19, 2023 · Endothelial cells are a specialized type of epithelium. While the endothelium only covers internal areas of the body, the epithelium also lines external tissues, such as the skin.

  4. Endothelial Cells: Definition, Types, Structure, Functions

    Mar 14, 2024 · Endothelial cells are specialized cells that cover the inside walls of blood vessels and lymphatic vessels. They form a thin and delicate layer of endothelium, which acts as a barrier …

  5. Endothelium - Mechanisms of Vascular Disease - NCBI Bookshelf

    The endothelium, first described over 100 years ago as an inert anatomical barrier between blood and the vessel wall, is now recognized as a dynamic organ with secretory, synthetic, metabolic, and …

  6. Human Endothelial Cells: What They Are and Why They Matter

    Human endothelial cells form a thin, active layer called the endothelium, which is the inner lining of our blood vessels and lymphatic system. This layer acts as an interface between circulating blood or …

  7. Endothelial Dysfunction | Linus Pauling Institute

    Endothelial dysfunction is a term that refers to impaired functioning of the lining of blood vessels. It is characterized by: impaired vasodilation deficiency of nitric oxide an "activated endothelium" that is in …

  8. Endothelial Dysfunction: Symptoms, Causes, and Treatment

    Oct 21, 2025 · Endothelial dysfunction is when blood vessels can't widen properly and often causes chest pain. Lifestyle changes like losing weight, exercising, and eating healthy can help manage …

  9. The Endothelium: What You Need to Know - Natural Heart Doctor

    The endothelium is a monolayer of endothelial cells that lines the inside of the entire vascular system, from the heart and arteries to the tiniest capillaries. These cells act as a barrier between the blood …

  10. Endothelial Dysfunction: Symptoms, Causes & Treatments

    May 12, 2022 · A single layer of endothelial cells lines the inside of all blood vessels (arteries, veins and capillaries), making your endothelium one of your body’s largest organ systems.