Isthmic Canal

**Isthmic canal** is an anatomical feature in women, which is a narrow isthmus between the uterus and vagina. This canal is only a few centimeters long, but is an important element in a woman's reproductive system.

One of the functions of the isthmic channel is to protect the reproductive organs from infections and diseases. When the cervix opens and releases sperm, which fertilizes the egg, the fertilized egg travels through the fallopian tubes into the uterus. The isthmic duct ensures safety during this process, preventing infections and other dangerous microbes from entering the genitals.

The anatomy of the isthmic duct may change over time. In particular, the length of this canal decreases during pregnancy, when the fetus grows and fills the uterus, expanding it. However, after childbirth, the isthmic duct can return to its normal length, making it a key element for the natural transition of the postpartum period.

The isthmic canal is also known as the isthmatic canal. This name comes from the Greek word "isthmus", which means "isthmus". It reflects the anatomical location of this canal, which connects two large structures of the body - the uterus and vagina.