When you’re expecting a baby, you’ll encounter many terms related to your body that may be new to you. One such term is the cervical os, a crucial component of the cervix that plays a vital role in both pregnancy and childbirth.
What is the Cervical Os?
The cervical os (pronounced “oss”) refers to the openings at both ends of the cervical canal, which is part of the cervix, the narrow, lower section of the uterus. This cylindrical structure, measuring about 1 to 2 inches in length, connects the uterus to the vagina. The cervical os has two openings: the internal cervical os opens into the uterus, while the external cervical os leads to the vagina.
During pregnancy, the cervical os undergoes significant changes to accommodate the growing baby. It remains tightly closed to protect the developing fetus, sealing off the uterus from potential infections. As labor approaches, the cervical os gradually dilates, allowing the baby to pass through during delivery. This transformation is essential for safe childbirth.
After childbirth, the cervical os returns to its smaller size, continuing to play its role in reproductive health. Understanding the cervical os can help you appreciate the remarkable processes your body goes through during pregnancy, labor, and postpartum recovery.
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In summary, the cervical os is a crucial part of the cervix that changes throughout pregnancy and childbirth. It helps protect the fetus and facilitates delivery, demonstrating the incredible adaptability of the female body.