الشريان التاجي الأيسر

(تم التحويل من Left coronary artery)
الشريان: Left coronary artery
Gray495.png
Heart viewed from above, atria removed, base of ventricles exposed. Left coronary artery visible at left.
Coronary arteries.svg
Heart viewed from the front. Coronary arteries (labeled in red text) and other major landmarks (in blue text). Left coronary artery في أعلى يمين الصورة.
لاتينية arteria coronaria sinistra
المصدر ascending aorta
الأفرع بين البطينين الأمامي
المحيط
(ramus intermedius)

الشريان التاجي الأيسر (left coronary artery؛ LCA؛ ويـُعرف أيضاً بإسم الشريان التاجي الرئيسي الأيسر أو الشريان التاجي الجذعي الرئيسي الأيسر) هو الشريان التاجي النابع من الأورطى فوق left cusp of the aortic valve, and supplies blood to the left side of the heart muscle.[بحاجة لمصدر] The left coronary artery typically runs for 10-25 mm, then bifurcates into the left anterior descending artery, and the left circumflex artery.[1]

The part that is between the aorta and the bifurcation only is known as the left main artery (LM), while the term "LCA" might refer to just the left main, or to the left main and all its eventual branches.[بحاجة لمصدر]

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البنية

تنويعات

Sometimes, an additional artery arises at the bifurcation of the left main artery, forming a trifurcation; this extra artery is called the ramus or intermediate artery.[2]

A "first septal branch" is sometimes described.[3]

صور إضافية

انظر أيضاً

  • Coronary circulation
  • Pete Maravich, American basketball player whose congenital lack of a left coronary artery contributed to his sudden death of heart failure at age 40

المراجع

  1. ^ Laird, Robert J.; Irwin, Scot (2004-01-01), Irwin, Scot; Tecklin, Jan Stephen, eds. (in en), Chapter 1 - Cardiovascular Structure and Function, Saint Louis: Mosby, pp. 3–38, doi:10.1016/b978-032301840-1.50005-0, ISBN 978-0-323-01840-1, http://www.sciencedirect.com/science/article/pii/B9780323018401500050, retrieved on 2020-11-20 
  2. ^ Fuster, V; Alexander RW; O'Rourke RA (2001). Hurst's The Heart (10th ed.). McGraw-Hill. p. 53. ISBN 0-07-135694-0.
  3. ^ Verna E, Santarone M, Boscarini M, Ghezzi I, Repetto S (June 1988). "Unusual origin and course of the first septal branch of the left coronary artery: angiographic recognition". Cardiovasc Intervent Radiol. 11 (3): 146–9. doi:10.1007/BF02577106. PMID 3139296. S2CID 20395578.

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