what are the three stages of labor EMT
Lesson Summary. And that's it; the three stages of labor: 1  The dilation stage, where the cervix widens and opens to about ten cm to allow passage of the fetus, or baby. 2  The expulsion stage, where uterine contractions push the baby through the cervix and down the birth canal, ending with delivery of the baby. The dilation stage: this begins when true labor starts. 2  The expulsion stage, which ends in parturition, or the birth of the baby. 3  The placental stage, which, as you may be able to guess, is the expulsion of the placenta from the uterus.