perilymphatic channel
http://purl.obolibrary.org/obo/UBERON_0011060
http://purl.obolibrary.org/obo/UBERON_0001846
http://purl.obolibrary.org/obo/UBERON_0000025
http://purl.obolibrary.org/obo/UBERON_0010314
http://purl.obolibrary.org/obo/UBERON_0004121