part of part of develops_from mesonephros mesonephric tubule pronephric duct mesonephric duct (...) in all craniates, the archinephric duct develops in embryogeny.[well established][VHOG] AAO:0000637 Anatomical structure consisting of either of a pair of longitudinal ducts which carry urine and in males, sperm, to the cloaca.[AAO] Consider adding subclasses for male and female specific variants EHDAA2:0001243 EHDAA:1590 EMAPA:16577 GAID:1315 In the male the Wolffian duct persists, and forms for example the epididymis, the ductus deferens, the ejaculatory duct, seminal vesicle and efferent ducts. Leydig's duct MESH:A16.254.940 Paired organ that connects the primitive kidney Wolffian body (or mesonephros) to the cloaca and serves as the anlage for certain male reproductive organs. the Wolffian duct is what remains of the pronephric duct after the atrophy of the pronephros[WP]. In Zebrafish: Duct of the adult kidney (mesonephros), present bilaterally ventral to the somites and leading to the cloacal chamber[ZFA]. TAO:0000546 TODO - mesonephric portion of the nephric duct The first-formed kidney duct, which drains the kidney of most anamniotes and becomes the ductus deferens of male amniotes. [Bemis_WE, Functional_Anatomy_of_the_Vertebrates:_An_Evolutionary_Perspective, Glossary_G-3, Grande_L, Liem_KF, Third_Edition_(2001)_Orlando_Fla.:_Harcourt_College_Publishers, Walker_WF][VHOG] UBERON:0003074 UMLS:C0043204 VHOG:0000082 Wolffian duct XAO:0000242 ZFA:0000546 archinephric duct ductus mesonephricus; ductus Wolffi renal duct uberon nephric ridge nephric duct