anatomical entity anatomical cavity galen:Cavity FMA:67552 BIRNLEX:1011 MA:0002447 cavity Anatomical space which contains portions of one or more body substances and is bounded by the internal surface of one maximally connected anatomical structure. Examples: cranial cavity, pharyngeal recess space, nasal cavity, tooth socket, cavity of serous sac, lumen of stomach, lumen of artery, fornix of vagina. uberon UBERON:0002553 NCIT:C34007