contained in material entity sperm duct PMID:19022767 ISBN:9780070316607 PMID:28434803 PMID:20844018 Planarian_Anatomy PMID:20967238 https://orcid.org/0000-0003-2569-1939 | https://orcid.org/0000-0002-7535-4407 PMID:25278423 PMID:27149082 PMID:22074376 PMID:27304889 https://doi.org/10.1101/279364 PMID:28072387 PMID:19247960 seminal duct ZFA:0001268 PMID:17390146 A network of tubes that transport sperm from the testes to the seminal vesicles. Tubes connect each testis to ducts that run along the ventral nerve cords. The ducts bifurcate immediately posterior to the pharynx, where they connect to the seminal vesicles. PMID:23652002 sperm ductule prepharyngeal region parapharyngeal region tail region reproductive organ copulatory region