Anal sinuses

（重定向自Rectal sinuses）

The anal sinuses (rectal sinuses) are furrows in the anal canal, that separate the anal columns from one another. The anal sinuses end below in small valve-like folds, termed anal valves.

单词	Rectal sinuses
释义	Rectal sinuses 英语百科 Anal sinuses （重定向自Rectal sinuses） The anal sinuses (rectal sinuses) are furrows in the anal canal, that separate the anal columns from one another. The anal sinuses end below in small valve-like folds, termed anal valves.
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