If after ovulation no pregnancy results, the corpus luteum
Is maintained by the presence of progesterone
Degenerates in a short time
Becomes active and secretes lot of $FSH$ and $LH$
Produces lot of oxytocin and relaxin
Why are menstrual cycles absent during pregnancy ?
When the ovulation is expected in a normal menstrual cycle?
Match the items given in the Column $I$ with those in Column $II$ and select the correct option given below:
Column $I$ |
Column $II$ |
$(a)$ Proliferative Phase |
$(i)$ Breakdown of endometrical lining |
$(b)$Secretory Phase |
$(ii)$ Follicular phase |
$(c)$ Menstruation |
$(iii)$ Luteal Phase |
Which one of the following statements is incorrect about menstruation?
Ovulation does not occur during pregnancy in the human female because