Ovulation takes place in/on
Ovary
About the $14^{th}$ day
Both of $(a)$ and $ (b)$
None of these
Menstrual flow occurs due to lack of
$A$ : Corpus luteum begins to atrophy after a short life of $10 \;to \;14$ days, if fertilisation does not occur.
$R$ : Luteolysis may be due to withdrawal of $LH$ support
A human female experiences two major changes, menarche and menopause during her life. Mention the significance of both the events.
Ovulation in the human female normally takes place during the menstrual cycle
Correct hormonal sequence in the increase of menstruation is