Mixing chemicals with waste in sewage holding tanks or septic. systems may produce toxic fumes, corrode pipelines and tanks, and. pollute soil and ground water when discharged. When chemicals, such as formaldehyde, are added to septic systems, they can cause. bacteria in the system to die.
The cervix is the opening to the womb. Itâs located between the vagina and the uterus and plays a crucial role in pregnancy and labor. During pregnancy, it remains closed and the opening is blocked with a mucus plug.
What You Need to Know About Your Cervix. The cervix is the lower portion of the uterus. It widens during childbirth to allow for the passage of the baby. It also allows the passage of menstrual fluid from the uterus, and sperm needs to travel through the cervix in order to reach the uterus. Despite the variety of objects passing through the cervix, it is only approximately two inches long, and is tubular in shape. The cervix is vulnerable to several health conditions, such as chronic inflammation, polyps, dysplasia, and cancer.