of 65 hearts from domestic and miniature pigs , 45 were injected with a methacrylate plastic and prepared as coronary artery casts whose branches were described and measured , and 20 were injected with different coloured dyes in the right , left anterior descending , and circumflex coronary arteries so that horizontal sections of the heart showed the distribution of each artery and the source of blood supply to particular areas or structures of the heart .
C0226037
circumflex coronary arteries
C0018787
structures