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Coronary circulation is the circulation of blood in the arteries and veins that supply the heart muscle (myocardium). Coronary arteries supply oxygenated blood to the heart muscle. Cardiac veins then drain away the blood after it has been deoxygenated. Because the rest of the body, and most especially the brain, needs a steady supply of ...
The coronary sinus (from Latin corona 'crown' [citation needed]) is the largest vein of the heart. [1][2] It drains over half of the deoxygenated blood from the heart muscle into the right atrium. It begins on the backside of the heart, in between the left atrium, and left ventricle; it begins at the junction of the great cardiac vein, and ...
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 two main branches are the left ...
TA2. 4159. FMA. 4707. Anatomical terminology. [edit on Wikidata] The great cardiac vein (left coronary vein) is a vein of the heart. It begins at the apex of the heart and ascends along the anterior interventricular sulcus [1] before joining the oblique vein of the left atrium to form the coronary sinus [2] upon the posterior surface of the heart.
Anatomy of the human heart. 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 ...
Posterior descending artery. Base and diaphragmatic surface of heart. (Posterior descending artery not visible, but it runs near the middle cardiac vein, which is labeled at the bottom.) In the coronary circulation, the posterior descending artery (PDA), also called the posterior interventricular artery (PIV, PIA, or PIVA), is an artery running ...
Most of the blood of the cardiac veins returns through the coronary sinus. The anatomy of the veins of the heart is very variable, but generally it is formed by the following veins: heart veins that go into the coronary sinus: the great cardiac vein, the middle cardiac vein, the small cardiac vein, the posterior vein of the left ventricle, and ...
The circumflex artery supplies the posterolateral left ventricle and the anterolateral papillary muscle. It also supplies the sinoatrial nodal artery in 38% of people. It supplies 15–25% of the left ventricle in right-dominant systems. If the coronary anatomy is left-dominant, the circumflex artery supplies 40–50% of the left ventricle.
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