Sinuatrial nodal artery

Artery: Sinoatrial nodal artery
Low magnification micrograph of a sinoatrial node (central on image), which surroundings the sinuatrial nodal artery (on lumen in the image). H&E stain.
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
MARG = left marginal
AVN = atrioventricular nodal

VEINS:
SCV = small cardiac
ACV = anterior cardiac
AIV/GCV = great cardiac
MCV = middle cardiac
CS = coronary sinus
Latin ramus nodi sinuatrialis arteriae coronariae dextrae

The sinuatrial nodal artery (or sinoatrial nodal artery) is an artery of the heart which supplies the sinoatrial node, and usually arises from either the right coronary artery or (less frequently) the circumflex branch of left coronary artery.

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