<prompt> Quiscence of the uterine musculature is :Enhanced by progesteroneEnhanced by oestrogenInhibited by ProgesteroneEnhanced by oestrogen and inhibited by progesterone  <response>: Progesterone is responsible for maintaining quiscence relaxation of uterine musculature This function of progesterone has been put to use for prevention of aboions: oral, injectable or vaginal micronised progesterones prevention of preterm labour in patients with high risk of preterm delivery like those with past history of preterm delivery, cervical encirclage, uterine anomalies, threatened preterm etc 