Posterior interventricular artery

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

The posterior interventricular artery (PIV) (or posterior descending artery(PDA)) is typically a branch of the right coronary artery (80%, known as right dominance) which runs in the posterior interventricular sulcus to the apex of the heart where it meets with the anterior interventricular artery. 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.

[edit] External links

• -456130501 at GPnotebook
• SUNY Figs 20:04-04 - "Posterior view of the heart."
• Image
• posterior+interventricular+branch+of+right+coronary+artery at eMedicine Dictionary
• Image at guidant.com

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