Think of your cervix as the gatekeeper to your uterus. It attaches the uterus to the vagina and provides a passage between the vaginal cavity and the uterine cavity.
The Normal Uterus
The lower part of the cervix known as the vaginal portion.
Anatomy of uterus and cervix. The cervix or cervix uteri is the lower part of the uterus in the human female reproductive system. Uterine artery the vaginal artery branches from the uterine artery and supplies what with blood. To assist in this role the epithelial lining of the cervix produces thick cervical mucus that fills the cervical canal and forms a mucus plug blocking the flow of material between the uterus and the vagina.
It is divided into 2 main parts. The cervix is the lower portion of the uterus an organ of the female reproductive tract. The cervix is a cylinder shaped neck of tissue that connects the vagina and uterus.
Anatomically and histologically the cervix is distinct from the uterus and hence we consider it as a separate anatomical structure. The cervix only about 4 centimetres 16 inches long projects about 2 centimetres into the upper vaginal cavity. The ectocervix exocervix is the outer part of the cervix.
It is rounded and lip like and sticks out into the vagina. The narrow central cervical canal runs along its entire length connecting the uterine cavity and the lumen of the vagina. During childbirth the cervix thins out and eventually dilates expands to 10 centimeters to allow the baby to pass through the birth canal.
When the woman isnt ovulating the cervical mucus thickens and serves as a barrier to keep sperm out of the uterus. Which artery has a right and left a branch of the anterior interior iliac artery and extends to the cervix two then course superiorly along the outside of the uterus. The endocervix is the inner part of the cervix lining the canal leading into the uterus.
Likewise there are thingslike mucous menstrual blood and the occasional babythat need to get out of your uterus. Lots of thingslike tampons fingers penises sex toys and other germ carrying itemscan get to your cervix but they arent getting past it. It connects the vagina with the main body of the uterus acting as a gateway between them.
Once the baby is born and the placenta is expelled. The opening into the uterus is called the internal os and the opening into the vagina is called the external os. The cervix of the uterus acts as the gatekeeper of the uterus by controlling when substances can pass into and out of the uterus.
The body of uterus is slightly bent forwards on the cervix and the angle between the long axis of body of uterus and the long axis of cervix is known as angle of anteflexion 125. Cervix lowest region of the uterus. The cervix is usually 2 to 3 cm long and roughly cylindrical in shape which changes during pregnancy.
Located at the lowermost portion of the uterus the cervix is composed primarily of fibromuscular tissue.
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