Right (acute) marginal artery
Branch
The largest right ventricular branch of the RCA, leaving at the acute (inferior) margin and running toward the apex; with smaller anterior RV branches it supplies the right ventricular free wall.
Traced from the start
- Right (anterior) aortic sinus
- Right coronary artery
- Right (acute) marginal artery
Detail
- Origin
- RCA at the acute margin of the heart
- Supplies
- Right ventricular free wall (anterior and inferior)
When it goes wrong
RCA occlusion proximal to the acute marginal branch
Right ventricular infarction, present in about 40% of inferior STEMIs; distal RCA occlusion spares the RV
Practise this structure
1 question in the bank tagged Coronary Circulation.