In human female which of the following is incorrect
Menstrual cycle takes $28$ days
Menopause occur at $45-55$ years
The ovulated egg released during pregnancy die
Menstruation takes $4$ days
When the ovulation is expected in a normal menstrual cycle?
In woman cessation of menstruation occurs at the age of
During menstruation the level of progesterone in blood is
What is called menstrual cycle ? Describe its phases ?
$A$ : 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