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The coronary arteries are the arterial blood vessels of coronary circulation, which transport oxygenated blood to the heart muscle. The heart requires a continuous supply of oxygen to function and survive, much like any other tissue or organ of the body. [1] The coronary arteries wrap around the entire heart.
The relatively narrow coronary arteries are commonly affected by atherosclerosis and can become blocked, causing angina or a heart attack. The coronary arteries are classified as "terminal circulation", since they represent the only source of blood supply to the myocardium; there is very little redundant blood supply, that is why blockage of ...
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
The most common type is coronary artery disease, in which plaque builds up in the arteries and blocks blood flow to the heart, potentially leading to heart attacks or heart failure.
This is a list of arteries of the human body. The aorta; The arteries of the head and neck. The common carotid artery. The external carotid artery; The triangles of ...
Coronary artery disease develops when the arteries that supply your heart become clogged with a fatty substance called plaque. The build-up of plaque is also called atherosclerosis.
The aorta is a large artery that branches into many smaller arteries, arterioles, and ultimately capillaries. In the capillaries, oxygen and nutrients from blood are supplied to body cells for metabolism, and exchanged for carbon dioxide and waste products. [8]
A heart attack occurs suddenly when an atherosclerotic plaque in one of the arteries to your heart ruptures. It can cause symptoms such as: Chest pain, pressure, or tightness.