Left coronary artery
(Redirected from Left main coronary artery)
Left Coronary Artery
The Left Coronary Artery (LCA) is one of the two main arteries that supply blood to the heart. It originates from the aorta above the left cusp of the aortic valve and feeds blood to the left side of the heart. The LCA is also known as the left main coronary artery (LMCA).
Anatomy[edit | edit source]
The left coronary artery typically runs for 10-20mm and then bifurcates into two major branches: the left anterior descending artery (LAD) and the circumflex artery (LCX). The LAD travels down the anterior interventricular groove, and the LCX travels in the left atrioventricular groove. The LCA supplies blood to the left and middle parts of the myocardium, the left atrium, and the majority of the left ventricle.
Clinical Significance[edit | edit source]
Blockage of the left coronary artery can lead to a myocardial infarction (heart attack), which can be life-threatening. This is because the LCA supplies blood to a larger portion of the heart compared to the right coronary artery. Therefore, blockages in the LCA are often more serious than those in the RCA.
See Also[edit | edit source]
References[edit | edit source]
| Left coronary artery Resources | |
|---|---|
|
 |
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
