organ component layer mucosa http://purl.obolibrary.org/obo/NCIT_C13166 http://purl.obolibrary.org/obo/UBERON_0000344 http://purl.org/sig/ont/fma/fma85355 https://en.wikipedia.org/wiki/Mucous_membrane https://www.wikidata.org/wiki/Q1219805 Organ component layer, each instance of which is lining the internal side of some organ. mucous membrane Glossary of HIV/AIDS-Related Terms