The endothelium is the layer of tissue which lines the inside of the arteries. It regulates the flow of blood through the arteries, by producing (or not producing) a substance called nitric oxide. Nitric oxide causes the arteries to expand to facilitate blood flow. The more nitric oxide produced by the endothelium, the more easily blood can flow through the arteries and the less likely an individual is to experience cardiovascular problems such as stroke and heart attack.
For more information, see Endothelium.
All content and media on the HealthEngine Blog is created and published online for informational purposes only. It is not intended to be a substitute for professional medical advice and should not be relied on as health or personal advice. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. Never disregard the advice of a medical professional, or delay in seeking it because of something you have read on this Website. If you think you may have a medical emergency, call your doctor, go to the nearest hospital emergency department, or call the emergency services immediately.