FEMALE REPRODUCTIVE ORGAN
TESTES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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False, they make them every month
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False, they make them every year
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False, they are born with all the primary oocytes they’ll ever have
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True
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Detailed explanation-1: -A female baby is born with all the eggs that she will ever have. This is estimated to be around two million, but by the time a girl reaches puberty, this number has decreased to about 400, 000. From puberty to the menopause, only about 300-400 eggs will be released through ovulation.
Detailed explanation-2: -At birth, the normal female ovary contains about 1-2 million/oocytes (eggs). Females are not capable of making new eggs, and in fact, there is a continuous decline in the total number of eggs each month. By the time a girl enters puberty, only about 25% of her lifetime total egg pool remains, around 300, 000.
Detailed explanation-3: -A human female typically has about 400, 000 follicles (and their primary oocytes), all formed before birth. Only several hundred (about 480) of these will actually ever be released as secondary oocytes during her reproductive years.
Detailed explanation-4: -At birth there are 1–2 million primary oocytes remaining and each is surrounded by a layer of flattened epithelial cells known as follicular cells. Each primary oocyte and the surrounding follicular cells form a spherical, primordial follicle.