What is the function of the cervix?

The cervix functions primarily as a connector between the vagina and the uterus. It serves as the passageway through which menstrual fluid exits the body and also allows sperm to enter the uterus during reproduction. Additionally, the cervix plays an important role during childbirth, as it needs to dilate to allow for the delivery of the baby. The structural composition of the cervix, which includes a strong yet flexible tissue, enables it to perform these functions effectively while maintaining the overall health of the reproductive system.

Other functions of the cervix include acting as a barrier to protect the uterus from external infections and maintaining the appropriate environment for fertilization and pregnancy, but the core definition remains its role as the connector.