top of page

29. a) Why is oxytocin necessary for Parturition?
b) List any four hormones secreted by Placenta.


a) Oxytocin acts on the uterine muscle and causes stronger uterine contractions. This leads to expulsion of the baby out of the uterus through the birth canal – parturition.

b) Human chorionic gonadotropin (hCG), human placental lactogen (hPL), oestrogen, progesterone that are essential to maintain pregnancy.

bottom of page