8% intrinsic car diac ganglionic cells are NADPHd positive neurons. Processes of some nerves with strong NADPHd positivity passing through intrinsic cardiac ganglion go to myocardium and end at the surface of cardiac muscle cells.

• 心内神经节中25.；8%25为NO阳性神经细胞，部分NO强阳性神经细胞突起穿过神经节进入心房肌层，终于心肌细胞表面。