The controlled self-propelled movement of a sperm cell from the uterus through the uterotubal junction (UTJ) into the oviduct, where interaction between the sperm and the UTJ acts as a major selective barrier for sperm, allowing only living, motile, uncapacitated, morphologically normal sperm with intact acrosomes to pass from the uterus into the oviduct.
sperm migration from the uterus to the oviduct