part of part of develops from develops from pronephros pronephric duct The pronephric duct collects the filtrate from the pronephric tubules and opens to the exterior of the pronephric kidney[GOC:mtg_kidney_jan10, PMID:15647339, XAO:0000063, ZFA:0000150] archinephric duct ductus pronephricus Wikipedia:Pronephric_duct Duct of the embryonic kidney, present bilaterally ventral to the somites and leading to the anal region where it empties separately from, and just posterior to the anus. Kimmel et al, 1995.[TAO] UMLS:C1283945 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:0003060 (...) in all craniates, the archinephric duct develops in embryogeny.[well established][VHOG] ZFA:0000150 XAO:0000063 SCTID:361406002 TAO:0000150 BTO:0005991 AAO:0011088 NCIT:C34279 In mammals, the pronephric duct is the predecessor of the Wolffian duct[WP]. pronephric ducts intermediate mesoderm pronephric mesoderm nephric duct meso-epithelium