There exist most of mucous cells are in epithelia of intestine,rectum and flank valvae of anus,which is type Ⅱ.
肠、直肠和肛门侧瓣粘膜上皮内均有大量粘液细胞,多为Ⅱ型.
瓣There exist most of mucous cells are in epithelia of intestine,rectum and flank valvae of anus,which is type Ⅱ.
肠、直肠和肛门侧瓣粘膜上皮内均有大量粘液细胞,多为Ⅱ型.
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