幽门囊 （pyloric appendage pyloric cae－cum） 是指硬骨鱼类附属在小肠起始部的小盲囊。
淀粉酶的活力大小与底物浓度有关，底物淀粉最适浓度依次为肝脏1%、幽门盲囊4%、肠2%、胃2%。
The amylase activity was also affected by different concentration of starch. The optimum concentration was 4% for pyloric , 2% for stomach , 2% for intestine, and 1% for liver.
裂体生殖和配子生殖发生在幽门盲囊和前肠上皮细胞核之上方。
Both schizogony and gametogony occur at the place above the nucleus of the epithelia cells of pyloric caeca and anterior intestine.
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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