By A Mystery Man Writer
The cervix is the cylindrical mouth of the uterus, separating it from the vagina. Normally, earlthe cervix is at least 3-4 cm long, and its length in pregnancy strengthens the protection of the fetus.
Cervical length as a predictor for spontaneous preterm birth in high‐risk singleton pregnancy: current knowledge - Hughes - 2016 - Ultrasound in Obstetrics & Gynecology - Wiley Online Library
Anatomy of pregnancy and birth - cervix
Measuring Cervical Length: A Key to Ending Preterm Births - The Atlantic
Preterm Birth: Causes, Symptoms, Complications & Treatment
An explanation of risk factors of preterm labor - Sanford Health News
Pessary Delays Births In Mothers at Risk of Premature Delivery - The New York Times
Preterm Birth in Twins
Cervical assessment - FMF Courses
The short cervix and preterm birth: 8 key questions and evidence-based answers