直肠部5 - HT免疫反应细胞的分布密度最大，空肠和十二指肠分布密度次之，回肠和盲肠的分布密度居中，而腺胃分布密度最低。
The density of 5-ht immunoreactive cells was the highest in rectum, and then in jejunum and duodenum, moderate in ileum and intestinum caecum and the lowest in glandular stomach.
幽门腺和直肠盲囊呈现蛋白酶、脂酶和非特性酯酶活性。
The pyloric gland and the intestinal caecum show activity of proteinase, lipase and non-specific esterase.
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