At puberty, each ovary contains approximately 200000 potential eggs. What a thought. Have you ever realized that you have the basic potential to produce nearly a quarter of a million bubs! Frightening, isn’t it. But happily. Nature is kind, and such an event is mechanically impossible (as well as being most undesirable).
Under the influence of F.S.H., each month between 10 and 20 of these primary eggs, called primary follicles, enlarge and mature. About this time, the influence of L.H. takes over and brings the follicles to full maturity. Suddenly one follicle dashes ahead of all the rest, makes its way to the surface of the ovary and bursts through the walls. In this way the tiny egg, or ovum, is released. This happens every menstrual month, and is called ovulation.
Stiff under the influence of L.H., the follicle from which the egg escaped suddenly collapses, devoid of ovum. But it rapidly fills up with fluid, and is converted into a corpus luteum. Within a few days, this starts to produce chemicals itself. They are potent female sex hormones, called oestrogen and progesterone. These two hormones have a direct and profound influence on many parts of the body, but especially on the reproductive organs.
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