arteriák

Arteries are a vital part of the circulatory system, responsible for transporting oxygenated blood away from the heart to the rest of the body. These muscular tubes have thick, elastic walls that can withstand the high pressure generated by the heart's contractions. The largest artery in the body is the aorta, which branches into smaller arteries, then arterioles, and finally capillaries, the tiny vessels where oxygen and nutrients are exchanged with tissues. Deoxygenated blood returns to the heart via veins. The structure of arteries is designed to maintain blood flow and pressure. Their smooth inner lining, the endothelium, prevents blood clots from forming. Any damage or narrowing of arteries, such as through atherosclerosis, can lead to serious health problems like heart attacks and strokes. Understanding the function and health of arteries is crucial for overall well-being.