serous membrane peritoneum http://upload.wikimedia.org/wikipedia/commons/5/5f/Gray1040.png A serous membrane that lines the peritoneal cavity[VHOG,modified]. VHOG:0001257 peritoneal TAO:0005120 FMA:9584 CALOHA:TS-2072 AAO:0010814 Wikipedia:Peritoneum TODO - in ZFA is_a epithelium todo: check MA/EMAPA. UBERON:0002358 Serous membrane that forms the lining of the abdominal cavity or the coelom. It covers most of the intra-abdominal organs, supports the abdominal organs, and serves as a conduit for their blood and lymph vessels and nerves. It is composed of a layer of mesothelium.[AAO] NCIT:C12770 MA:0000449 MESH:D010537 galen:Peritoneum XAO:0000139 EV:0100087 ZFA:0005120 UMLS:C0031153 peritonaeum uberon BTO:0001472 An epithelium that lines the peritoneal cavity.[TAO] GAID:18