What is cervix ?

The cervix is the lower part of the uterus that connects to the vagina. It is a cylindrical-shaped organ that plays a crucial role in the female reproductive system. The cervix produces mucus that helps sperm travel through the reproductive tract to fertilize an egg. During childbirth, the cervix dilates to allow the baby to pass through the birth canal. It also acts as a barrier to protect the uterus from infections.