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| {{Infobox Artery |
| | #Redirect [[Coronary arteries#Right Coronary Artery]] |
| Name = {{PAGENAME}} |
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| Latin = arteria coronaria dextra |
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| GraySubject = 142 |
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| GrayPage = 546 |
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| Image = Gray492.png |
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| Caption = Sternocostal surface of heart. (Right coronary artery visible at left.) |
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| Image2 = Cardiac vessels.png |
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| Caption2 = '''ARTERIES:'''<BR>RCA = right coronary<BR>AB = [[atrial branches of coronary arteries|atrial branches]]<BR>SANB = [[sinuatrial nodal artery|sinuatrial nodal]]<BR>RMA = [[right marginal branch of right coronary artery|right marginal]]<BR>LCA = [[left coronary artery|left coronary]]<BR>CB = [[circumflex branch of left coronary artery|circumflex branch]]<BR>LAD/AIB = [[anterior interventricular branch of left coronary artery|anterior interventricular]]<BR>LMA = [[left marginal artery|left marginal]]<BR>PIA/PDA = [[posterior interventricular artery|posterior descending]]<BR>MARG = [[left marginal artery|left marginal]]<BR>AVN =[[atrioventricular nodal branch|atrioventricular nodal]]<BR><BR>'''VEINS:'''<BR>SCV = [[small cardiac vein|small cardiac]]<BR>ACV = [[anterior cardiac veins|anterior cardiac]]<BR>AIV/GCV = [[great cardiac vein|great cardiac]]<BR>MCV = [[middle cardiac vein|middle cardiac]]<BR>CS = [[coronary sinus]] |
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| BranchFrom = [[ascending aorta]] |
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| BranchTo = |
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| Vein = |
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| Supplies = |
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| MeshName = |
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| MeshNumber = |
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| DorlandsPre = a_61 |
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| DorlandsSuf = 12154058 |
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| }}
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| {{SI}}
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| {{CMG}}
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| ==Overview==
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| The '''right coronary artery''' (or '''RCA''') originates above the right cusp of the [[aortic valve]]. It travels down the right [[atrioventricular groove]], towards the crux of the [[heart]]. In addition to supplying blood to the [[right ventricle]] (RV), the RCA supplies 25% to 35% of the [[left ventricle]] (LV).
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| ==Branches of the Right Coronary Artery==
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| * The first branch of the RCA is usually the conus artery, which either arises within the first few millimeters of the RCA or from a separate ostium in the anterior [[aortic sinus]].
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| * The RCA also supplies the [[SA nodal artery]] in 60% of patients. In just under 40% of patients, the SA nodal artery is supplied by the [[left circumflex artery]]. In the remaining cases, SA node receives a dual blood supply.
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| * In 85% of patients, the RCA gives off the [[posterior descending artery|posterior descending artery (PDA)]]. In the other 15% of cases, the PDA is given off by the[[left circumflex artery]]. The PDA supplies the inferior wall, [[ventricular septum]], and the posteromedial [[papillary muscle]].
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| ==Additional images==
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| <gallery>
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| Image:Gray495.png|Base of ventricles exposed by removal of the atria.
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| Image:Gray505.png|The arch of the aorta, and its branches.
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| Image:Gray506.svg|Plan of the branches.
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| Image:AMI scheme.png|Diagram of a myocardial infarction.
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| Image:Aortic stenosis rheumatic, gross pathology 20G0014 lores.jpg|[[Aorta]] and coronary arteries at [[autopsy]]. The proximal portion of the RCA and its [[ostium]] can be seen at the lower left.
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| </gallery>
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| {{Arteries of chest}}
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| {{Coronary Angiography}}
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| [[Category:Cardiology]]
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| [[Category:Anatomy]]
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| [[Category:Cardiovascular anatomy]]
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| [[Category:Arteries]]
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| [[Category:Angiopedia]]
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