Right coronary artery
In the coronary circulation, the right coronary artery (RCA) is an artery originating above the right cusp of the aortic valve, at the right aortic sinus in the heart. It travels down the right coronary sulcus, towards the crux of the heart. It branches into the posterior descending artery and the right marginal artery. Although rare, several anomalous courses of the right coronary artery have been described including origin from the left aortic sinus.
|Right coronary artery|
Sternocostal (front) surface of heart. (Right coronary artery labeled at left.)
|Supplies||right atrium (RA), right ventricle (RV), & 25% to 35% of left ventricle.|
|Latin||arteria coronaria dextra|
At the origin of the RCA is the conus artery.
In 85% of patients (Right Dominant), the RCA gives off the posterior descending artery (PDA). In the other 15% of cases (Left Dominant), the PDA is given off by the left circumflex artery. The PDA supplies the inferior wall, ventricular septum, and the posteromedial papillary muscle.
RCA = right coronary
AB = atrial branches
SANB = sinuatrial nodal
RMA = right marginal
LCA = left coronary
CB = circumflex branch
LAD/AIB = anterior interventricular
LMA = left marginal
PIA/PDA = posterior descending
MARG = left marginal
AVN = atrioventricular nodal
SCV = small cardiac
ACV = anterior cardiac
AIV/GCV = great cardiac
MCV = middle cardiac
CS = coronary sinus
- Right coronary artery
- Base of ventricles exposed by removal of the atria.
- The arch of the aorta, and its branches.
- Plan of the branches.
- Diagram of a myocardial infarction.
- Human heart with coronary arteries
- Fetal heart - right coronary artery
- Angelini, P. (15 July 2014). "Novel Imaging of Coronary Artery Anomalies to Assess Their Prevalence, the Causes of Clinical Symptoms, and the Risk of Sudden Cardiac Death". Circulation: Cardiovascular Imaging. 7 (4): 747–754. doi:10.1161/CIRCIMAGING.113.000278.