the function of adenosine is the most important. H+,CO2, ethylidene lactic acid ,BK,PGE also can dilate coronary.

• 心肌局部代谢产物是导致冠脉扩张的主要因素；其中腺苷作用最为重要.；H+；CO2；乳酸；BK；PGE等亦可舒张冠脉