juxtaglomerular apparatus
http://purl.obolibrary.org/obo/UBERON_0002303
http://purl.obolibrary.org/obo/UBERON_0002335
http://purl.obolibrary.org/obo/UBERON_0001225
http://purl.obolibrary.org/obo/UBERON_0000477
http://purl.obolibrary.org/obo/BFO_0000040