Blood vessel supplying the human heart
Blood vessel
In theblood supply of the heart , theright coronary artery (RCA ) is anartery originating above the right cusp of theaortic valve , at theright aortic sinus in theheart .[ 1] [ 2] coronary sulcus , towards thecrux of the heart .[ 1] [ 3] sinoatrial nodal artery ,right marginal artery ,posterior interventricular artery ,conus artery ,[ 4] atrioventricular nodal branch .[citation needed It contributes the right side of the heart, and parts of theinterventricular septum .[ 2] [ 5]
The right coronary artery originates above theright aortic sinus above theaortic valve .[ 1] [ 2] coronary sulcus (right atrioventricular groove) towards thecrux of the heart .[ 1] [ 3]
In approximately 80% of patients (right dominant), the RCA gives off theposterior descending artery (PDA). In the other 20%, of cases (left dominant or codominant), the PDA arises from theleft circumflex artery or is supplied by both the right coronary artery and the left circumflex.[ 8] inferior wall ,ventricular septum , and the posteromedialpapillary muscle .[citation needed
The RCA also supplies theSA nodal artery in 60% of people. The other 40% of the time, the SA nodal artery is supplied by theleft circumflex artery .[citation needed
Although rare, several anomalous courses of the right coronary artery have been described including origin from the left aortic sinus.[ 9]
The right coronary artery supplies oxygenated blood to theright atrium , theright ventricle , and the posterior third and inferior end of theinterventricular septum .[ 2] [ 5] left ventricle (LV).[ 10]
There is significantoverlap of supply of thecoronary arteries .[ 2] left coronary artery 50% of the time, equal to it 20% of the time, and less significant than it 30% of the time.[ 2]
Right coronary artery
The arch of the aorta, and its branches.
Diagram of a myocardial infarction.
Aorta and coronary arteries at
autopsy . The proximal portion of the RCA and its
ostium can be seen at the lower left.
Human heart with coronary arteries
Fetal heart - right coronary artery
^a b c d Aggeli, Constantina; Mavrogeni, Sofia; Tousoulis, Dimitris (2018-01-01), Tousoulis, Dimitris (ed.),"Chapter 3.5.1 - Non-invasive Imaging Techniques in Coronary Artery Disease" Coronary Artery Disease , Academic Press, pp. 337– 358,doi :10.1016/b978-0-12-811908-2.00017-9 ,ISBN 978-0-12-811908-2 , retrieved2020-11-20 {{citation }}: CS1 maint: work parameter with ISBN (link )^a b c d e f Pappano, Achilles J.; Gil Wier, Withrow (2013-01-01), Pappano, Achilles J.; Gil Wier, Withrow (eds.),"11 - Coronary Circulation" Cardiovascular Physiology (Tenth Edition) , Philadelphia: Elsevier, pp. 223– 236,doi :10.1016/b978-0-323-08697-4.00011-3 ,ISBN 978-0-323-08697-4 , retrieved2020-11-20 {{citation }}: CS1 maint: work parameter with ISBN (link )^a b Sivananthan, M. (2018-01-01),"Coronary Anatomy" Encyclopedia of Cardiovascular Research and Medicine , Oxford: Elsevier, pp. 691– 699,doi :10.1016/b978-0-12-809657-4.99738-2 ,ISBN 978-0-12-805154-2 , retrieved2020-11-20 ^ Antonopoulos, Alexios S.; Siasos, Gerasimos; Antoniades, Charalambos; Tousoulis, Dimitris (2018-01-01), Tousoulis, Dimitris (ed.),"Chapter 2.1 - Functional Anatomy" Coronary Artery Disease , Academic Press, pp. 121– 126,doi :10.1016/b978-0-12-811908-2.00008-8 ,ISBN 978-0-12-811908-2 , retrieved2020-11-20 {{citation }}: CS1 maint: work parameter with ISBN (link )^a b Schipper, Paul; Sukumar, Mithran; Mayberry, John C. (2008-01-01), Asensio, JUAN A.; Trunkey, DONALD D. (eds.),"Pertinent Surgical Anatomy of the Thorax and Mediastinum" Current Therapy of Trauma and Surgical Critical Care , Philadelphia: Mosby, pp. 227– 251,doi :10.1016/b978-0-323-04418-9.50037-0 ,ISBN 978-0-323-04418-9 , retrieved2020-11-20 {{citation }}: CS1 maint: work parameter with ISBN (link )^a b c Villa, AD; Sammut, E; Nair, A; Rajani, R; Bonamini, R; Chiribiri, A (28 June 2016)."Coronary artery anomalies overview: The normal and the abnormal" .World Journal of Radiology .8 (6):537– 55.doi :10.4329/wjr.v8.i6.537 PMC 4919754 PMID 27358682 . ^a b c Kini, S; Bis, KG; Weaver, L (June 2007). "Normal and variant coronary arterial and venous anatomy on high-resolution CT angiography".AJR. American Journal of Roentgenology .188 (6):1665– 74.doi :10.2214/AJR.06.1295 .PMID 17515392 . ^ Shahoud, James S.; Ambalavanan, Manoj; Tivakaran, Vijai S. (2020).Cardiac Dominance PMID 30725892 . ^ 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 PMID 25027456 . ^ Wheeler, Derek S.; Wong, Hector R.; Shanley, Thomas P. (2014-05-22).Pediatric Critical Care Medicine: Volume 2: Respiratory, Cardiovascular and Central Nervous Systems ISBN 978-1-4471-6356-5
