tõrustikuvõrgustik

Tõrustikuvõrgustik refers to the network of blood vessels that supply the heart muscle, known as the myocardium, with oxygenated blood. This vital system consists of the coronary arteries and their branches, as well as the coronary veins that drain deoxygenated blood. The primary coronary arteries originate from the aorta, just above the aortic valve, and branch out to cover the entire surface of the heart. These arteries deliver oxygen and nutrients essential for the heart's continuous pumping action. Blockages or narrowing within the tõrustikuvõrgustik, often caused by atherosclerosis, can lead to serious cardiovascular conditions such as angina pectoris and myocardial infarction (heart attack). The intricate arrangement of these vessels ensures that even during increased physical exertion, the heart muscle receives an adequate supply of blood. Understanding the structure and function of the tõrustikuvõrgustik is fundamental to comprehending heart health and disease.