part_of part of part of contains process contains process develops_from develops from channel for sperm spermatogenesis meiotic cell cycle tube testis seminiferous tubule of testis http://upload.wikimedia.org/wikipedia/commons/4/49/Seminiferous_tubule_and_sperm_low_mag.jpg http://upload.wikimedia.org/wikipedia/commons/6/6a/Gray1145.png BTO:0001235 UMLS:C0036630 NCIT:C34293 seminiferous tubule Wikipedia:Seminiferous_tubule The tubules in the testes where spermatogenesis occurs. tubuli seminiferi MA:0000412 EFO:0001404 MESH:D012671 seminiferous cord VHOG:0001363 UMLS:C1519236 EMAPA:18685 UBERON:0001343 MAT:0000503 tubuli seminiferi Frogs among amphibians and the amniotes have males with testes that are composed of seminiferous tubules, which differ from ampullae in being long, highly convoluted ductules.[well established][VHOG] AAO:0010399 GAID:400 uberon testis - seminiferous tubule XAO:0003088 EMAPA:31476 NCIT:C13047 Any of the coiled tubules located in the testes in which spermatozoa are produced.[AAO] EV:0100380 CALOHA:TS-1239 One of two or three twisted curved tubules in each lobule of the testis in which spermatogenesis occurs. [TFD][VHOG] SCTID:279614002 FMA:19825 mesoderm-derived structure testis sex cord duct of male reproductive system