<prompt> All of the following statements are true except :Oxytocin sensitivity is increased during deliveryProstaglandins may be given for inducing abortion during IIIrd trimesterIn lactating women genital stimulation enhances oxytocin releaseOxytocin is used for inducing aboion in 1st trimester  <response>: Ans. is d i.e. Oxytocin is used for inducing aboion in Ist trimester Lets see each option one by one. Oxytocin causes contraction of smooth muscles of uterus. The sensitivity of uterine musculature to oxytocin is enhanced by estrogen and inhibited by progesterone. The sensitivity of uterus to oxytocin becomes very much increased in late pregnancy. Oxytocin levels reach maximum at the time of bih i.e. option a is correct. In lactating women genital stimulation enhances oxytocin release option c is correct. Prostaglandins are used in I. and Ilna trimester for induction of aboion. I can not understand what the examiner wants to say by Ur trirnc,ctPr aboion as beyond 28 weeks fetus is ble therefore, term aboion is never used. It may be a printing mistake. As far as option d is concerned -- It is absolutely incorrect as oxytocin is never used for Is trimester aboions. Friends dont get upset, if you dont remember methods used of inducing aboionright now, as we have dealt with it in detail in chapter Aboion MTP. 