Anterior interventricular branch of left coronary artery
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| Artery: Anterior interventricular branch of left coronary artery | |
|---|---|
| Sternocostal surface of heart. (Anterior descending branch labeled at upper right.) | |
| The arch of the aorta, and its branches. | |
| Latin | ramus interventricularis anterior arteriae coronariae sinistrae |
| Gray's | subject #142 547 |
| Source | left coronary artery |
| Dorlands/Elsevier | r_02/12690388 |
The "LAD", or left anterior descending artery (or anterior interventricular branch of the left coronary artery, or anterior descending branch) passes at first behind the pulmonary artery and then comes forward between that vessel and the left auricula to reach the anterior interventricular sulcus, along which it descends to the incisura apicis cordis.
In 78% of cases, it reaches the apex of the heart.
It supplies the anterolateral myocardium, apex, and interventricular septum. The LAD typically supplies 45-55% of the left ventricle (LV).
The LAD gives off two types of branches: septals and diagonals.
- Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the intraventricular septum.
- Diagonals run along the surface of the heart and supply the lateral wall of the LV and the anterolateral papillary muscle.
[edit] Additional images
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[edit] External links
- Dictionary at eMedicine anterior+interventricular+branch%20of%20left%20coronary%20artery
- SUNY Labs 20:09-0102 - "Heart: The Left Coronary Artery and its Branches"
- SUNY Figs 20:03-08 - "Anterior view of the heart."
- GPnotebook 168165435
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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