Ovulation depends on a delicate balance of hormones. In order for ovarian follicles to begin developing into mature ova, follicle stimulating hormone (FSH) must be released from the pituitary gland.
When a woman is pregnant, a hormone released by the corpus luteum or the placenta called progesterone prevents FSH release from the pituitary, so no further follicles are stimulated to mature, so no eggs are released.
yes.
men are not born with all their sperm.
Yes. That's why it is better to not get pregnant as an older woman. Men produce sperm every day.
Yes, it does gradually slow down as you get older. But each period you have is the system clean out and getting ready for the "new eggs".
Yes, that is correct.
a man can release millions of sperm at once,however only one sperm can fertilize an egg
It has something to do with the fecundity of the organism. Some organisms release only one egg at a time, so only one egg gets to be fertilized. Smae goes with the animals that release multiple eggs at once, the eggs can be fertilized all at the same time.
It varies somewhat but it works out to be, on average, about every 28 days. There is variation between women and even from cycle to cycle for individual women. In girls just starting menstruation and women undergoing menopause it can be (and usually is) much more irregular. Note: the average is for the release of ONE egg and there are TWO ovaries.
Yes, they do.
No, typically only one sperm fertilizes one egg during sexual reproduction in humans. However, in rare cases, multiple sperm can fertilize the same egg, resulting in a condition called polyspermy, which often leads to developmental abnormalities and is not viable for long-term survival.
It depends on the person. With most women the ovaries may alternate with one releasing an egg one month and then the other releasing an egg the next. Women are born with all of their eggs and it depends on when each egg is ready and hormones. However, some women only release from one ovary because something is wrong with the other.
Women don't have only one egg or ovum, but the natural lifespan of a woman's fertility is limited. If your thinking was correct a woman couldn't have more than one child or twins. It is illogical to think that women only have one egg.
Female sterilization normally involves cutting or tying the fallopian tube, limiting access to the egg by the sperm. A women still ovulates every month. Ovulation is the release of an egg. A fertilized egg is one that has allowed the sperm to penetrate.
Only one of those women can be a part of the baby. One egg+one sperm=1baby
When a woman ovulates, usually just one egg is released.
Most women only release one egg, but obviously sometimes two, three or even more are released, hence twins, triplets and so on. If a woman is receiving drugs to stimulate egg production prior to egg harvesting for IVF she may release many eggs.
a man can release millions of sperm at once,however only one sperm can fertilize an egg
It has something to do with the fecundity of the organism. Some organisms release only one egg at a time, so only one egg gets to be fertilized. Smae goes with the animals that release multiple eggs at once, the eggs can be fertilized all at the same time.
the genes are in the egg. so the women who gave the egg will share the genes of the baby
Women's eggs is referred to as ova. ONE egg is referred to as an ovum.
Ovulation is defined as the release of the egg; they happen simultaneously as they are one and the same.
egg,one via oogenesis