ประโยคภาษาจีน : 中文句子 |
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zhí cháng 直肠 nián mó 黏膜 shàng pí 上皮 zài 在 zhí cháng 直肠 mò duān 末端 tū rán 突然 zhuǎn biàn 转变 wèi 为 xiè zhí qiāng 泄殖腔 de 的 fù céng 复层 biǎn píng 扁平 shàng pí 上皮 liǎng zhě 两者 zhī jiān 之间 jiè xiàn 界线 míng xiǎn 明显 |
| The mucosal epithelium of rectum transforms into stratified squamous epithelium abruptly at the end of the rectum. The boundary line between rectum and cloaca was very distinct. |