Verevarustussüsteemi

Verevarustussüsteemi, also known as the circulatory system or cardiovascular system, is a vital biological system responsible for transporting blood throughout the body. This system consists of the heart, blood vessels, and blood. The heart acts as a muscular pump, propelling blood through a network of arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart to the body's tissues, while veins return deoxygenated blood to the heart. Capillaries are tiny vessels where the exchange of oxygen, nutrients, and waste products between the blood and the cells occurs. Blood itself is a fluid connective tissue composed of plasma, red blood cells, white blood cells, and platelets. Red blood cells carry oxygen, white blood cells fight infection, and platelets are crucial for blood clotting. The circulatory system plays a critical role in delivering oxygen and nutrients to all cells, removing carbon dioxide and metabolic waste, regulating body temperature, and transporting hormones and immune cells. Disruptions to the verevarustussüsteemi can lead to various health issues, including heart disease, stroke, and peripheral artery disease. Maintaining a healthy lifestyle, including regular exercise and a balanced diet, is essential for optimal functioning of this system.