作者用放射免疫测定检测了13只雄兔胃液及十二指肠液胃动素含量,并与同步测定的右心室血浆的胃动素含量作比较.结果表明,消化液中有较高的胃动素含量,十二指肠液.血浆与胃液的胃动素浓度比为4:2:1,3组间两两比较相差显著(P<0.05～0.01).实验说明,消化液中胃动素含量与消化道局部的Mo细胞分布密度有关,Mo细胞除有内分泌途径外,还有腔内分泌或外分泌途径. The authors tested the content of motilin and duodenum motilin in 13 male rabbits by radioimmunoassay and compared the content of motilin in the right ventricular plasma measured synchronously.The results showed that there was higher motilin in the digestive juice Content and duodenal juice.The motilin concentration ratio of plasma and gastric juice was 4: 2: 1, 3, the difference between every two groups was significant (P <0.05 ~ 0.01) .Experiments showed that the content of motilin in digestive juice and Local distribution of Mo cells in the digestive tract, Mo cells in addition to the endocrine pathway, there are endocrine or exocrine pathway.