Posterior interventricular artery Information & Posterior interventricular artery Links at HealthHaven.com

Artery: Posterior interventricular artery
	Base and diaphragmatic surface of heart. (Posterior descending artery not visible, but it runs near the middle cardiac vein, which is labeled at the 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
Latin	ramus interventricularis posterior arteriae coronariae dextrae
Gray's	subject #142 547
Supplies	ventricles; interventricular septum
Source	right coronary artery
Vein	middle cardiac vein, posterior interventricular vein

The posterior interventricular artery (PIV) (or posterior descending artery(PDA)) is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior interventricular artery.

It is typically a branch of the right coronary artery (80%, known as right dominance). Alternately, the PIV can be a branch of the circumflex coronary artery (20%, known as left dominance) which itself is a branch of the left coronary artery.

Variants have been reported.^[2]