Fill in the Blanks Fertilisation fill in the gapOnline version Fill in the gaps to explain the process of fertilisation! by Mrs E Brinkley 1 uterus sneezes ejaculates implementation Ciliated divides implantation embryo egg cervix baby thousands vagina oviduct single fertilisation millions 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 .