The two coronary arteries, right and left, are distributed almost
entirely to the heart, but send some small twigs to the origins of the
great vessels.
The =right coronary artery= (A. coronaria dextra) arises from the
anterior sinus of the aorta. It passes forward between the conus
arteriosus and the right auricle (appendix) to the coronary groove, in
which it curves around to the right and backward. It then descends in
the right ventricular groove almost to the apex of the heart.
[Illustration: