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Anatomy and Electrophysiology
Coronary Arteries of the Heart
There are three main coronary arteries of the heart.
| Coronary Arteries | Areas Supplied | | Right Coronary Artery |
Sinus Node
AV Node
Bundle of His
Posterior Fascicle of Left Bundle Branch
Posterior Third of Septum
Right Atrium and ventricular walls
Inferior wall of Left Ventricle
| | Circumflex |
SA node
Posterior Fascicle of Left Bundle Branch
Lateral wall of Left Ventricle
| | Left Anterior Descending |
Anterior 2/3 of septum
Right Bundle Branch
Anterior Fascicled of Left Bundle Branch
Anterior wall of Left Ventricle
Lower segment of AV junction
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