duct XAO:0004000 UBERON:0000058 exocrine gland duct ZFA:0005171 NCIT:C12948 SCTID:91726008 uberon exocrine duct AAO:0011123 UMLS:C0687028 FBbt:00100314 Most ducts, but not all, are exocrine gland ducts. Some ontologies classify structures such as the oviduct here. FMA:30320 ducts Wikipedia:Duct_(anatomy) galen:Duct A tube shaped portion of tissue lined with epithelial cells that collects secretions and routes them to their destination[ZFA:0005171]. TAO:0005171 A tubular structure that transports secreted or excreted substances. anatomical duct organ subunit