part_of part of part of develops_from develops from develops from mesonephros mesonephric tubule pronephric duct mesonephric duct http://upload.wikimedia.org/wikipedia/commons/6/6d/Gray1109.png TAO:0000546 Wikipedia:Mesonephric_duct TODO - mesonephric portion of the nephric duct XAO:0000242 SCTID:308800003 uberon Consider adding subclasses for male and female specific variants 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]. UMLS:C0043204 Anatomical structure consisting of either of a pair of longitudinal ducts which carry urine and in males, sperm, to the cloaca.[AAO] ductus mesonephricus; ductus Wolffi (...) in all craniates, the archinephric duct develops in embryogeny.[well established][VHOG] Wolffian duct Leydig's duct MESH:D014928 UBERON:0003074 EHDAA2:0001243 In the male the Wolffian duct persists, and forms for example the epididymis, the ductus deferens, the ejaculatory duct, seminal vesicle and efferent ducts. GAID:1315 archinephric duct AAO:0000637 ZFA:0000546 NCIT:C26469 VHOG:0000082 BTO:0005990 EMAPA:16577 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] EHDAA:1590 renal duct nephric ridge nephric duct meso-epithelium