has part has_part duct 导管(duct) A tube shaped portion of tissue lined with epithelial cells that collects secretions and routes them to their destination[ZFA:0005171]. A tubular structure that transports secreted or excreted substances. AAO:0011123 FBbt:00100314 FMA:30320 Most ducts, but not all, are exocrine gland ducts. Some ontologies classify structures such as the oviduct here. TAO:0005171 UBERON:0000058 UMLS:C0687028 XAO:0004000 ZFA:0005171 anatomical duct anatomical duct ducts ducts exocrine duct exocrine duct exocrine gland duct exocrine gland duct galen:Duct uberon 外分泌管 外分泌管 外分泌腺管 外分泌腺管 大多数导管，但不是全部，都是外分泌腺导管。一些本体在这里对如输卵管的结构进行分类。 导管(ducts) 导管(ducts) 管状的组织内衬上皮细胞，收集分泌物和将其送达目的地[ZFA：0005171]。 解剖导管 解剖导管 运输分泌物或排泄物的管状结构。 organ subunit 器官单位 anatomical conduit space 解剖导管空间 epithelial layer of duct 导管上皮层