The first menstruation is called $........$,and in humans,the menstrual cycle ceases around the age of $50$ years,which is termed as $........$.

What is the other name for the follicular phase in the menstrual cycle?

The figure given below illustrates the changes taking place during the human menstrual cycle. Identify hormones $A, B, C, D$ and $E$ from the figure. In the boxes shown in the figure, write the name of the hormone (or hormones) controlling the stage in the human menstrual cycle.

Arrange the events of the menstrual cycle in the order they occur:
$I.$ Secretion of $FSH$
$II.$ Growth of corpus luteum
$III.$ Growth of follicle and oogenesis
$IV.$ Ovulation
$V.$ Sudden increase in the level of $LH$

Changes in $GnRH$ pulse frequency in females control the secretion of ..........

In girls, the first menstruation begins at puberty and is called .....