Fetal Descent Stations (Birth Presentation). This medical illustration pictures a single detailed view of the female abdomen during labor, with pelvic bones, uterus, vaginal canal and a large 41 week fetus in the vertex position at the -2 station. The cervix is shown and labeled at a 10cm dilation. Identified within this view are stations of descent. This exhibit is typical as it features the commonly used descent stations from -3, 0, +3.