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| 消化腺 (包括大消化腺和小消化腺。大消化腺位于消化管壁外，为独立的器官，分泌的消化液经导管流入消化管腔内，如大唾液腺、肝和胰; 小消化腺位于消化管壁的黏膜层或黏膜下层，如唇腺、颊腺等。消化腺主要由腺组织构成,分泌的消化液中含有各种消化酶,如胃蛋白酶、胰蛋白酶和胰淀粉酶等) | |||
| 消化肓囊 | |||
| ★ 消化腺 | |||
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