<unk> s are muscle<unk> s of the<unk>  smooth muscle that occur during the menstrual cycle.<unk> s occur throughout the menstrual cycle in the non-pregnant state and throughout gestation.
Uterine contraction
Vaginal contraction
Placental expulsion
Ovulation
Ovulation induction
Uterine inversion
Uterine hyperstimulation
Cervical dilation