in lateral side of channel for channels_from tube testis semen internal male genitalia duct of male reproductive system male genital duct UBERON:0010140 FMA:55678 ZFA:0001268 TAO:0001268 in FMA includes as parts: seminal vesicle, efferent ductule (vas efferentia), epididymis, deferent duct (vas deferens), ejaculatory duct A duct or series of ducts that transports sperm from the gonad. In mammals this is from the seminiferous tubules through rete testis, vas efferentia, epididymis, vas deferens, ejeculatory duct to the urethra. uberon sperm duct UBERON:0006947 lateral structure