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来自维基百科,自由的百科全书
外套膜(英语:Mantle;拉丁语:Pallium,形容词形式:pallial,本义指长袍),或简称作套膜,是软体动物、腕足动物及被囊动物的重要解剖部分,由其背侧的体壁向下褶与伸展形成,经常包裹整个内脏团;而内脏囊与外套膜之间的空腔即为外套膜腔或外套腔(Mantle cavity)[1]。外套腔是许多器官的开口,如肛门、鳃孔、肾孔、生殖孔等[2]。
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