GENERAL HISTOLOGY

Detailed explanation-1: -By the time a girl enters puberty, only about 25% of her lifetime total egg pool remains, around 300, 000. Over the next 30-40 years of a female’s reproductive life, the entire egg supply will be depleted.

Detailed explanation-2: -Over the course of a lifetime your ovaries will release about 500 eggs in their mature form. When the supply of eggs runs out, your ovaries cease to make estrogen, and you will go through the menopause. For most women this happens around the age of 50: the average age in the developed world is 51.4 years1.

Detailed explanation-3: -You’re born with all the eggs you’ll ever produce. During fetal development, you have about 6 million eggs. At birth, there are approximately 1 million eggs left. By the time you reach puberty, only about 300, 000 remain.

Detailed explanation-4: -The ovaries grow in girls, and eggs begin to develop. Ovaries also begin to release mature eggs (Menstruation starts).

Detailed explanation-5: -After ovulation the egg lives for 12 to 24 hours and must be fertilised in that time if a woman is to become pregnant. The burst of oestrogen just before ovulation also works inside the neck of the uterus (the cervix) to make protein-rich clear jelly that covers the top of the vagina during sex.