give the span in terms of days in a menstural cycle:(a)maturation of follicle (b)ovulation (3)regression of corpus luteum
a. maturation of follicle- day 1-14
b. ovulation- around 14th day
c. regression of corpus luteum- about 24 - 28 day.
In menstrual cycle one ovum is released from either ovaries and the remaining graffian follicle converts into corpus luteum which will secret progesterone for only 7 days but if pregnancy occurs then it secret progesterone for 3 months , in this scenario how the corpus luteum will secret RELAXIN at the parturition at 9 month if it is already died and replaced by placenta?