The cervix will feel round, while the cervical os will feel like a small donut with a hole or indentation in the middle. Throughout the menstrual cycle, the cervical os will open and close in ...

The cervix changes in early pregnancy and throughout the menstrual cycle. Here's how to check your cervix for pregnancy. Medically reviewed by Renita White, MD Medically reviewed by Renita White ...

The cervix-on-a-chip resembled the human organ in other ways as well. Hormonal variations during the menstrual cycle influence cervical mucus properties and functions. 5 When the researchers mimicked ...