Term Name:	coelemic cavity lumen
Synonyms:	body cavity, celom, coelom, coelome, coelomic cavity, coelomic cavity lumen, hemocoel, main body cavity, space of body compartment, ventral body cavity
Definition:	The cavity within the body of all animals higher than the coelenterates and certain primitive worms, formed by the splitting of the embryonic mesoderm into two layers. In mammals it forms the peritoneal, pleural, and pericardial cavities.
Ontology:	Cell Ontology [UBERON:0002323]