part of part of develops_from pronephros pronephric duct (...) in all craniates, the archinephric duct develops in embryogeny.[well established][VHOG] AAO:0011088 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] In mammals, the pronephric duct is the predecessor of the Wolffian duct[WP]. TAO:0000150 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] The pronephric duct collects the filtrate from the pronephric tubules and opens to the exterior of the pronephric kidney[GOC:mtg_kidney_jan10, http://www.ncbi.nlm.nih.gov/pubmed/15647339, XAO:0000063, ZFA:0000150] UBERON:0003060 UMLS:C1283945 VHOG:0000082 XAO:0000063 ZFA:0000150 archinephric duct ductus pronephricus pronephric ducts uberon intermediate mesoderm pronephric mesoderm nephric duct meso-epithelium