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)左瓣上方。
左冠狀動脈 | |
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Heart viewed from above, atria removed, base of ventricles exposed. Left coronary artery visible at left. | |
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. | |
基本信息 | |
來源 | 升主動脈 |
分支 | 左前降支動脈 左迴旋支動脈 (中間支) |
标识字符 | |
拉丁文 | arteria coronaria sinistra |
TA98 | A12.2.03.201 |
TA2 | 4142 |
FMA | FMA:50040 |
格雷氏 | p.547 |
《解剖學術語》 [在维基数据上编辑] |
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(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)。
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)。
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 (页面存档备份,存于互联网档案馆)
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