Anatomy
·Thorax & Spine
Coronary Circulation
⭐ PREMIUM
The coronary arteries arise from the aortic sinuses; knowing each artery's territory predicts infarct patterns.
ARTERIES
• Right coronary artery (RCA): right atrium/ventricle; gives the SA nodal (~60%), AV nodal (~80–90%) and posterior interventricular (in right-dominant hearts) branches → inferior wall.
• Left coronary artery → LAD (anterior interventricular: anterior wall + septum + apex) + c…
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