作者采用电镜观察狗尖牙造牙本质细胞/前期牙本质界和前期牙本质中的自主神经末梢。清晰见到大量电子很稠密颗粒泡和少数不同大小的无颗粒泡的肾上腺素能神经末梢。但在造牙本质细胞/前期牙本质界及近造牙本质细胞突的前期牙本质中却罕见,如同前期牙本质中部的游离末梢。也见许多不同大小的非胞外颗粒泡的胆碱能神经末梢。在近胶原形成区,在如同 The authors used electron microscopy to observe the canine odontoblack dentin cells / pre-dentin and pre-dentin autonomic nerve terminals. See clearly a large number of very dense electron-dense particle vesicles and a few non-granular vesicles of different sizes adrenergic nerve endings. However, it is rare in the dentin cells / presymptomatic dentition and pre-dentin near odontoblasts, as the free distal end of the precentral dentin. See also cholinergic nerve endings of many different sizes of non-extracellular granular vesicles. Near the collagen formation area, in the same