Select the incorrect statement.
$LH$ and $FSH$ decrease gradually during the follicular phase.
$LH$ triggers secretion of androgens from the Leydig cells.
$FSH$ stimulates the sertoli cells which help in spermiogenesis.
$LH$ triggers ovulation in ovary.
Menstruation cycle occurs
About which day in a normal human menstrual cycle does rapid secretion of $LH$ (popularly called $LH$ surge) normally occurs?
How many eggs are released by a human ovary in a month? How many eggs do you think would have been released if the mother gave birth to identical twins? Would your answer change if the twins born were fraternal?
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 |
The substance secreted by the corpus luteum is