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.
Before birth, a fetus starts with around 2 million eggs in each ovary. Those eggs are trimmed down over time, and a girl is born with around 300,000 eggs in each ovary. She â¦normally releases 1 egg a month during her fertile years.
Women are born with a finite number of eggs. The ovaries are not like the testes in men. The testes are like sperm factories that continue to make fresh sperm all the time. The ovaries are more like âbanksâ of eggs. The ovaries are not autonomous (self-regulating), and need to be stimulated to function.