The spelling of the medical term "orificium externum uteri" is pronounced as /ɔːrɪˈfɪsiəm ɛkstɜːnəm juːtəraɪ/. This term refers to the external opening of the cervix or the uterus. The pronunciation of this word can be difficult for those who are not familiar with medical terminology. It is important to remember the correct spelling and pronunciation of this term since it is widely used in obstetrics and gynecology to describe female reproductive anatomy.
Orificium externum uteri, commonly referred to as the external os of the uterus, is a crucial anatomical structure found in the female reproductive system. It serves as the opening or entrance of the uterus into the vaginal canal, acting as a passageway for menstrual blood to exit the body during menstruation and for spermatozoa to enter during sexual intercourse for possible fertilization.
The orificium externum uteri is located at the lower part of the cervix, which is the neck-like portion of the uterus that extends into the upper vagina. It is circular in shape and typically measures around 2 to 3 centimeters in diameter. The size of the external os can vary among women, especially during different stages of life, such as during puberty or after childbirth.
The external os is lined with a layer of specialized cells that undergo cyclical changes as regulated by hormonal fluctuations during the menstrual cycle. These changes in the cervical mucus and position of the external os can have implications for fertility and contraception.
Gynecologists and healthcare providers often examine the external os during routine pelvic exams to assess its size, position, and overall health. Any abnormalities, such as abnormal cell growth or structural changes, may require further investigation or treatment to ensure reproductive health and prevent potential complications.
Os uteri externum, the mouth of the womb, the opening in the vaginal portion of the cervix uteri.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.