Corpus luteum in pregnancy has a long life. However, if fertilisation does not take place, it remains active only for $10-12$ days. Explain.
Broken graafian follicle get convert into corpus leuteum and secretes progesterone in large amount that is necessary for care of endometrium. Such endometrium becomes necessary for fertilization ovum (zygote) of implantation and other events of pregnancy. Due to this reason there is a long life of corpus leuteum in pregnancy. But no care of endometrium necessary in absence of fertilization. Therefore corpus leuteum decomposes into $10$ to $12$ days.
Menstruation cycle occurs
The rupture of the graafian follicle and the release of ovum occurs under the influence of
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?
The following graph of relative concentrations of the four hormones present in the blood plasma of a woman during her menstrual cycle. Identify the hormones.
What are the events that take place in the ovary and uterus during follicular phase of the menstrual cycle ?