这个词是什么意思？
A dilated cavity extended caudally from the hindgut. In adult birds, reptiles, amphibians, and many fishes but few mammals, cloaca is a common chamber into which the digestive, urinary and reproductive tracts discharge their contents. In most mammals, cloaca gives rise to LARGE INTESTINE; URINARY BLADDER; and GENITALIA.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D002988 · MeSH 2026。
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