Right coronary artery: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Infobox Artery | | |||
Name = {{PAGENAME}} | | |||
Latin = arteria coronaria dextra | | |||
GraySubject = 142 | | |||
GrayPage = 546 | | |||
Image = Gray492.png | | |||
Caption = Sternocostal surface of heart. (Right coronary artery visible at left.) | | |||
Image2 = Cardiac vessels.png | | |||
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]] | | |||
BranchFrom = [[ascending aorta]] | | |||
BranchTo = | | |||
Vein = | | |||
Supplies = | | |||
MeshName = | | |||
MeshNumber = | | |||
DorlandsPre = a_61 | | |||
DorlandsSuf = 12154058 | | |||
}} | |||
{{SI}} | |||
{{CMG}} | {{CMG}} | ||
Revision as of 18:28, 27 August 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The right coronary artery (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).
Branches
- The right coronary artery branches into:
- The conus artery
- At the origin of the RCA is the conus artery.
- SA branch
- The RCA supplies the SA nodal artery in 60% of patients. The other 40% of the time, the SA nodal artery is supplied by the left circumflex artery.
- Acute marginal artery
- It supplies the right ventricular wall.
- Posterior descending artery
- In 85% of patients, the RCA gives off the posterior descending artery (PDA). In the other 15% of cases, the PDA is given off by the left circumflex artery.
- It supplies the inferior wall, posterior interventricular septum and posteromedial papillary muscle.[1]
- The conus artery
Segments
Table
Additional Images
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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. -
Reference
- ↑ Morton DA, Foreman KB, Albertine KH. Chapter 4. Heart. In: Morton DA, Foreman KB, Albertine KH, eds. The Big Picture: Gross Anatomy. New York: McGraw-Hill; 2011.