Computer generated image (CGI) of Sperm coloured blue.  Sperm is the male reproductive cell (or gamete) found in anisogamous forms of sexual reproduction. Within the oviduct (Fallopian tube), cilia accelerate the rendezvous between oocytes and sperm in the ampullary region.  These same cilia then assume the role of transferring preimplantational embryos from the oviduct to the uterus where the conceptus will develop.