结构高低级

大体解剖 > 消化系统 > 大肠 > 肛管 > Linea anocutanea

翻译

描述

The lower 1/3 of the anal canal (anal pecten) is lined by stratified squamous epithelium that blends with the skin. It ends at the anocutaneous line, the lower margin of the internal anal sphincter and beginning of the external skin. T


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