Coronary circulation
Coronary Circulation (pronunciation: /kəˈrəʊnəri ˌsɜːkjʊˈleɪʃən/)
The Coronary Circulation refers to the circulation of blood in the blood vessels of the heart muscle (myocardium). The vessels that deliver oxygen-rich blood to the myocardium are known as coronary arteries. The vessels that remove the deoxygenated blood are known as cardiac veins. These include the Great cardiac vein, the Anterior cardiac veins, the Smallest Cardiac Veins, and the Middle and Small Cardiac Veins.
Etymology
The term "coronary" comes from the Latin "corona" and the Greek "koronè," which means crown. This is a reference to the crown-like appearance of the coronary arteries as they encircle the heart.
Coronary Arteries
The coronary arteries are classified into two main arteries: the Left Coronary Artery (LCA) and the Right Coronary Artery (RCA). These arteries and their branches supply all parts of the heart muscle with blood.
Left Coronary Artery
The Left Coronary Artery (LCA) branches into the Left Anterior Descending (LAD) artery and the Circumflex artery.
Right Coronary Artery
The Right Coronary Artery (RCA) branches into the Posterior Descending Artery (PDA) and the Marginal Artery.
Coronary Veins
The coronary veins comprise the Coronary Sinus, the Great Cardiac Vein, the Middle Cardiac Vein, and the Small Cardiac Vein.
Related Terms
- Myocardial Infarction
- Coronary Artery Disease
- Angina Pectoris
- Cardiac Catheterization
- Coronary Angiography
- Coronary Artery Bypass Surgery
External links
- Medical encyclopedia article on Coronary circulation
- Wikipedia's article - Coronary circulation
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