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Middle cardiac vein
Middle cardiac vein
	Base and diaphragmatic surface of heart. (Middle cardiac vein labeled at bottom.)
	ARTERIES:; 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; AVN = atrioventricular nodal; ; VEINS:; SCV = small cardiac; ACV = anterior cardiac; AIV/GCV = great cardiac; MCV = middle cardiac; CS = coronary sinus
Details
Drains to	Coronary sinus
Artery	Posterior interventricular artery
Identifiers
Latin	vena cardiaca media, ; vena cordis media
TA98	A12.3.01.009
TA2	4165
FMA	4713
	Anatomical terminology [edit on Wikidata]

The middle cardiac vein commences at the apex of the heart. It passes posteriorly along the inferior interventricular sulcus to end at the coronary sinus near the sinus' termination.^[1]

Structure

The middle cardiac vein commences at the cardiac apex (here, it is contiguous with the great cardiac vein, thus forming - along with the coronary sinus - a complete venous circle).^[1]

The middle cardiac vein has a constant location on the surface of the ventricles.^[2]

The middle cardiac vein is useful for epicardial access to the inferior side of the ventricles.^[3]

^ ^a ^b Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). New York. p. 1093. ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link)
^ Worley, Seth J. (2017-01-01), Ellenbogen, Kenneth A.; Wilkoff, Bruce L.; Kay, G. Neal; Lau, Chu-Pak (eds.), "30 - Coronary Sinus Lead Implantation", Clinical Cardiac Pacing, Defibrillation and Resynchronization Therapy (Fifth Edition), Elsevier, pp. 739–834, ISBN 978-0-323-37804-8, retrieved 2021-01-08
^ Issa, Ziad F.; Miller, John M.; Zipes, Douglas P. (2012-01-01), Issa, Ziad F.; Miller, John M.; Zipes, Douglas P. (eds.), "Chapter 27 - Epicardial Ventricular Tachycardia", Clinical Arrhythmology and Electrophysiology: A Companion to Braunwald's Heart Disease (Second Edition), Philadelphia: W.B. Saunders, pp. 608–617, ISBN 978-1-4557-1274-8, retrieved 2021-01-08