part of part of cloaca MESH:D002988 GAID:1206 cloacal chamber AAO:0000095 SCTID:362857006 XAO:0000244 UBERON:0000162 Common chamber into which the intestines and excretory system opens. Arises during development in all vertebrates, but in many it becomes subdivided, lost or incorporated into other structures. vent VHOG:0001186 SCTID:370631000 NCIT:C34127 ZFA:0005781 Wikipedia:Cloaca digestive tract genitourinary system subdivision of tube