Home > Female Reproductive System > Female Reproductive Organs of the Lower Torso > Fertilization and Pregnancy > Cervix with Mucous Plug

Cervix with Mucous Plug

The cervix with a mucous plug prevents breakage of the amniotic sac or leakage of the vital amniotic fluid. The cervix is the lower one-third of the uterus; during pregnancy, a thick mucous plug seals the cervical orifice (the opening to the uterus).

 

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