part of part of luminal space of anatomical space thoracic segment of trunk thoracic cavity EMAPA:36497 FMA:7565 GAID:93 In many species, the diaphragm separates thoracic and abdominal cavities MA:0000032 MESH:A01.911.800 OpenCyc:Mx4rmvyleLfEEduAAAACs6hRXg OpenCyc:Mx4rvhU_TpwpEbGdrcN5Y29ycA The part of the coelemic cavity lumen that is enclosed by the walls of the thorax. UBERON:0002224 UMLS:C0230139 cavitas thoracis cavity of chest cavity of thorax chest cavity pectoral cavity space of thoracic compartment thoracic lumen uberon coelemic cavity lumen