Sometimes, a small sample of tissue may be taken with small tools inserted through the vagina during a transvaginal ultrasound. In all three types of pelvic ultrasound, the transducer sends the reflected sound waves to a computer, which makes them into a picture that is shown on a video screen.
So the number of egg-containing follicles remaining in the ovary undergoes a steady decline from an average of 400,000 eggs at age eighteen to an average of 25,000 eggs by age thirty-seven. After age thirtyseven or thirty-eight, there is then a very dramatic acceleration of the monthly decline of remaining eggs.
Normally, a woman normally releases ONE egg per menstrual cycle. On occasion, a woman will release two, which would result in fraternal twins if both eggs are fertilized. woman's egg supply peaks before she herself is born, with at least 7 million eggs packed into the fetal ovary. By birth the number dwindles to a million, and then drops to 3 â¦ 00,000 by puberty, And not all matures.