Completar Frases Fertilisation fill in the gapVersión en línea Fill in the gaps to explain the process of fertilisation! por Mrs E Brinkley 1 millions fertilisation thousands single uterus ejaculates divides egg embryo Ciliated cervix implantation oviduct sneezes implementation baby vagina During intercourse , the man releasing of sperm into the . Sperm cells swim from the vagina to the to the . cells waft the down the oviduct towards the uterus . A sperm meets the egg and occurs . The fertilised egg several times to form a ball of cells called an . The embryo attaches to the lining of the uterus in a process called .