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左冠狀動脈(arteria coronaria sinistra,英文簡稱LCA),又稱左主冠狀動脈(left main coronary artery,簡稱LMCA)為主動脈的一條分支,負責供應心臟左側的血流。其源自於主動脈瓣英语aortic valve左辦上方。

左冠狀動脈
Gray495.png
Heart viewed from above, atria removed, base of ventricles exposed. Left coronary artery visible at left.
Coronary arteries.png
Heart viewed from the front. Coronary arteries (labeled in red text) and other major landmarks (in blue text). Left coronary artery is at upper right in the image.
细节
拉丁语 arteria coronaria sinistra
來源 降主動脈
分支 左前降支動脈
左迴旋支動脈英语Circumflex branch of left coronary artery
(中間支)
识别标示
Gray's p.547
Dorlands a_61/12154070
TA英语Terminologia Anatomica A12.2.03.201
FMA FMA:50040
解剖学术语英语Anatomical terminology

目录

分支编辑

左冠狀動脈約在距根部10 to 25 mm 會岔分為前室間動脈(又稱左前降支動脈)以及左迴旋支動脈英语left circumflex artery(簡稱LCx)。在某些個案可能會多出一條分支,多出來的分支稱為中間支(ramus intermedius)[1]

左冠狀動脈至分岔前稱為左總冠狀動脈(Left main artery,簡稱LM),「左冠狀動脈」這個字有時單純指左總冠狀動脈,有時則包含其所有終末分支。

在有些人身上可能可以看到「第一膈膜支」(first septal branch)[2]

附加圖像编辑

參見编辑

參考文獻编辑

  1. Fuster, V; Alexander RW; O'Rourke RA. Hurst's The Heart 10th. McGraw-Hill. 2001: 53. ISBN 0-07-135694-0. 
  2. Verna E, Santarone M, Boscarini M, Ghezzi I, Repetto S. Unusual origin and course of the first septal branch of the left coronary artery: angiographic recognition. Cardiovasc Intervent Radiol. June 1988, 11 (3): 146–9. PMID 3139296. doi:10.1007/BF02577106. 

3. Rohan Pravinbhai Parikh, Amey Beedkar, Mahendra Maske, Bhavesh Talaviya, Sunil Washimkar, Pradeep Deshmukh, Mukund Deshpande. International Journal of Biomedical and Advance Research. 2016; 7(6): 298-299. http://ssjournals.com/index.php/ijbar/article/view/3370/2363

外部連結编辑