Fallopian tube: A sperm must
swim all the way from your vagina up through your cervix and uterus and
into the fallopian tube to fertilize the egg.
Ovary: One of your eggs has broken out of its follicle in the ovary and been swept into the fallopian tube.
Ovum:
Once a sperm burrows through the outer membrane to penetrate the ovum,
or egg, their genetic material combines to form a new cell that soon
starts rapidly dividing.
Sperm: All it takes is one sperm out of about 250 million in the average ejaculation to fertilize the egg.
