Uterine isthmus
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Not to be confused with Isthmus of uterine tube.
| Uterine isthmus | |
|---|---|
| Details | |
| Identifiers | |
| Latin | Isthmus uteri |
| Anatomical terminology | |
The uterine isthmus is the inferior-posterior part of uterus, on its cervical end — here the uterine muscle (myometrium) is narrower and thinner. It connects the body and cervix.
The uterine isthmus can become more compressibile in pregnancy, which is a finding known as Hegar's sign.