{{Short description|Artery}} {{Infobox artery | Name = Right marginal branch of right coronary artery | Latin = ramus marginalis dexter arteriae coronariae dextrae | Image = Gray492.png | Caption = Sternocostal surface of heart. (Right marginal artery not labeled, but is visible at bottom left.) | Image2 = Cardiac vessels.png | Caption2 = '''ARTERIES:'''<br>RCA = right coronary<br>AB = atrial branches<br>SANB = sinuatrial nodal<br>RMA = right marginal<br>LCA = left coronary<br>CB = circumflex branch<br>LAD/AIB = anterior interventricular<br>LMA = left marginal<br>PIA/PDA = posterior descending<br>MARG = left marginal<br>AVN = atrioventricular nodal<br><br>'''VEINS:'''<br>SCV = small cardiac<br>ACV = anterior cardiac<br>AIV/GCV = great cardiac<br>MCV = middle cardiac<br>CS = coronary sinus | BranchFrom = right coronary artery | BranchTo = | Vein = right marginal vein | Supplies = }} The '''right marginal branch of right coronary artery''' (or '''right marginal artery''') is the largest marginal branch of the right coronary artery. It follows the acute margin of the heart. It supplies blood to both surfaces of the right ventricle.
== Structure == The right marginal branch is the largest branch to split off from the right coronary artery.<ref>{{Citation|last1=Aggeli|first1=Constantina|title=Chapter 3.5.1 - Non-invasive Imaging Techniques in Coronary Artery Disease|date=2018-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780128119082000179|work=Coronary Artery Disease|pages=337–358|editor-last=Tousoulis|editor-first=Dimitris|publisher=Academic Press|language=en|doi=10.1016/b978-0-12-811908-2.00017-9|isbn=978-0-12-811908-2|access-date=2020-11-18|last2=Mavrogeni|first2=Sofia|last3=Tousoulis|first3=Dimitris|url-access=subscription}}</ref><ref name=":0">{{Citation|last1=Antonopoulos|first1=Alexios S.|title=Chapter 2.1 - Functional Anatomy|date=2018-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780128119082000088|work=Coronary Artery Disease|pages=121–126|editor-last=Tousoulis|editor-first=Dimitris|publisher=Academic Press|language=en|doi=10.1016/b978-0-12-811908-2.00008-8|isbn=978-0-12-811908-2|access-date=2020-11-18|last2=Siasos|first2=Gerasimos|last3=Antoniades|first3=Charalambos|last4=Tousoulis|first4=Dimitris|url-access=subscription}}</ref> It often anastomoses with the nearby parallel posterior interventricular artery, which itself is usually a continuation of the right coronary artery.<ref name=":1">{{Citation|last=Sivananthan|first=M.|title=Coronary Anatomy|date=2018-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780128096574997382|encyclopedia=Encyclopedia of Cardiovascular Research and Medicine|pages=691–699|editor-last=Vasan|editor-first=Ramachandran S.|place=Oxford|publisher=Elsevier|language=en|isbn=978-0-12-805154-2|access-date=2021-01-08|editor2-last=Sawyer|editor2-first=Douglas B.}}</ref>
=== Variation === The right marginal branch may reach the distal part of the posterior interventricular sulcus.<ref name=":1" />
== Function == The right marginal branch primarily supplies the right ventricle.<ref name=":0" /><ref>{{Citation|last=Wu|first=Justina C.|title=18 - Acute Myocardial Infarction|date=2019-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780323392266000187|work=Essential Echocardiography|pages=195–199.e1|editor-last=Solomon|editor-first=Scott D.|publisher=Elsevier|language=en|isbn=978-0-323-39226-6|access-date=2021-01-08|editor2-last=Wu|editor2-first=Justina C.|editor3-last=Gillam|editor3-first=Linda D.}}</ref>
==Additional images== thumb|300px|none|Coronary arteries (labeled in red text) and other major landmarks (in blue text). ''Right (acute) marginal artery'' is labeled at left in the image.
<gallery> File:Human heart with coronary arteries new.png|Human heart with coronary arteries </gallery>
== References == <references />
==External links== * {{SUNYAnatomyFigs|20|03|07}} - "Anterior view of the heart." * [https://web.archive.org/web/20061205093913/http://mywebpages.comcast.net/wnor/heartantmajorvessels.jpg Image] * [http://www.clevelandclinic.org/heartcenter/pub/guide/disease/cad/cad_rca_popup.htm Image at clevelandclinic.org]
{{Arteries of chest}} {{Authority control}}
Category:Arteries of the thorax