During menstruation the level of progesterone in blood is
Low
High
Normal
Very high
What are the changes in the oogonia during the transition of a primary follicle to Graafian follicle ?
Transformation of a young follicle into graafian follicle is controlled by
Which one of the following is the correct matching of the events occurring during menstrual cycle?
Given below is a flow chart showing ovarian changes during menstrual cycle. Fill in the spaces giving the name of the hormones responsible for the events shown.
$\boxed{\rm {Primary follicles}}$
$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \leftarrow \,\boxed A$
$\boxed{\rm {Graafian follicle}}$
$\,\,\,\,\,\,\,\,\,\,\,\,\,\, \downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \leftarrow \,\boxed B$
$\,\,\,\,\,\,\,\,\,\,\,\boxed{\rm {Ovum}}$
$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \downarrow \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \leftarrow \,\boxed C$
$\boxed{\rm {Corpus leuteum}}$
Changes in $GnRH$ pulse frequency in femail is controlled by circulating levels of