显微镜聚光器
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crypts of Lieberkuhn 利氏肠腺窝 ; 隐窝
lieberkuhn gland 肠腺
glands of Lieberkuhn 李氏腺
This suggests that the endocrine cells were located in the epithelium of the villi and the crypts of lieberkuhn and in the lamina propria of the small intestine in the low forms of vertebrate.
故可认为低等脊椎动物扬子鳄不仅在小肠腺和小肠上皮内，而且在固有层内均含有内分泌细胞。
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