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首页> 美国政府科技报告 >'Schistosoma mansoni:' Description of the Head Gland of Cercariae and Schistosomules at the Ultrastructural level.
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'Schistosoma mansoni:' Description of the Head Gland of Cercariae and Schistosomules at the Ultrastructural level.

机译：'曼氏血吸虫：'超微结构水平上尾蚴和血吸虫的头腺描述。

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The head gland of the cercaria of Schistosoma mansoni appears to be a relatively large unicellular entity consisting of a fundus tapering into a system of multiple ducts that opens into the integument at the anterior end of the oral sucker. The fundus is located in the posteriodorsal area of the oral sucker and contains most of the secretory granules. The ducts are usually narrow and devoid of secretory granules especially near their integumental junctions in the cercaria. In schistosomules of S. mansoni the fundus is reduced and the ducts are distended as secretory granules move en masse into the integument during the penetration of cercariae into their host where they may provide material for repair of the integument of the oral sucker damaged during penetration. The head gland has a strong affinity for luxol fast blue and acid hematin stains which suggests the presence of phospholipids. (Author)

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