Left_main_coronary_artery

Left coronary artery

Left coronary artery

Artery supplying blood to the left side of the heart muscle

The left coronary artery (LCA, also known as the left main coronary artery, or left main stem coronary artery) is a coronary artery that arises from the aorta above the left cusp of the aortic valve, and supplies blood to the left side of the heart muscle.[citation needed] The left coronary artery typically runs for 10–25 mm, then bifurcates into the left anterior descending artery, and the left circumflex artery.[1]

Quick Facts Details, Source ...

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.[citation needed]

Structure

Variation

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]

Additional images

  • Left coronary artery
  • Cardiac vessels
  • The aortic arch and its branches
  • Diagram of the arch
  • Human heart with coronary arteries
  • Heart left lateral coronaries diagram
  • Diagram of a myocardial infarction
  • A coronary angiogram that shows the LMCA, LAD, and LCX
  • Autopsy specimen showing the coronary ostia and proximal segments of the coronary arteries. Compare with Gray's Anatomy drawing above.
  • Left coronary artery
  • Left coronary artery. Plastination technique
  • Left coronary artery. Plastination technique

See also

References

  1. [1]
    Laird, Robert J.; Irwin, Scot (2004-01-01), Irwin, Scot; Tecklin, Jan Stephen (eds.), "Chapter 1 - Cardiovascular Structure and Function", Cardiopulmonary Physical Therapy (Fourth Edition), Saint Louis: Mosby, pp. 3–38, doi:10.1016/b978-032301840-1.50005-0, ISBN 978-0-323-01840-1, retrieved 2020-11-20
  2. [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. [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.
Share this article:

This article uses material from the Wikipedia article Left_main_coronary_artery, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.