利用者:宝塚ファミリーランド/翻訳作業3
| 宝塚ファミリーランド/翻訳作業3 | |
|---|---|
|
Gray492.png Sternocostal surface of heart. (Anterior descending branch labeled at upper right.) | |
|
Gray505.png The arch of the aorta, and its branches. | |
| ラテン語 | ramus interventricularis anterior arteriae coronariae sinistrae |
| 英語 | Anterior interventricular branch of left coronary artery |
{{:en:Infobox Artery |
GraySubject = 142 | GrayPage = 547 | BranchFrom = left coronary artery | BranchTo = septals, diagonals| Vein = | Supplies = anterolateral myocardium, apex, interventricular septum, 45-55% of the left ventricle (LV) | MeshName = | MeshNumber = | DorlandsPre = r_02 | DorlandsSuf = 12690388 |
}}
左前下行枝は The "LAD", or left anterior descending artery (or anterior interventricular branch of the en:left coronary artery, or anterior descending branch) is an 動脈 of the 心臓.
走行
[編集]It passes at first behind the 肺動脈 and then comes forward between that vessel and the 左心耳(en:left auricula) to reach the 前室間溝(en:anterior interventricular sulcus), along which it descends to the 心尖切痕(en:incisura apicis cordis).
In 78% of cases, it reaches the 心尖.
血液供給
[編集]It supplies the anterolateral 心筋, apex, and 心室中隔. The LAD typically supplies 45-55% of the 左心室(en:left ventricle) (LV).
分枝
[編集]The LAD gives off two types of branches: 中隔穿通枝(septals) and 対角枝(diagonals).
- Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the en:interventricular septum.
- 対角枝 run along the surface of the heart and supply the lateral wall of the en:left ventricle and the 乳頭筋(anterolateral papillary muscle).
Additional images
[編集]
External links
[編集]- anterior+interventricular+branch%20of%20left%20coronary%20artery - eMedicine Dictionary
- Anatomy photo:20:09-0102 at the SUNY Downstate Medical Center - "Heart: The Left Coronary Artery and its Branches"
- Anatomy figure: 20:03-08 at Human Anatomy Online, SUNY Downstate Medical Center - "Anterior view of the heart."
- 168165435 - GPnotebook
この記事にはパブリックドメインであるグレイ解剖学第20版（1918年）本文が含まれています。 Template:Circulatory-stub Template:Arteries of chest