Where does a woman get her eggs from
The ovaries form part of the female reproductive system. Each woman has two ovaries. They are oval in shape, about four centimetres long and lie on either side of the womb uterus against the wall of the pelvis in a region known as the ovarian fossa. They are held in place by ligaments attached to the womb but are not directly attached to the rest of the female reproductive tract, e.SEE VIDEO BY TOPIC: Ovulation - Nucleus Health
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You and Your Hormones
Conventional science has taught women for years that they are born with all of the eggs they will ever have. The theory has been that women are born with one to two million immature eggs at birth, and they will slowly begin losing them over the course of their lifetimes. Many of those eggs will be lost before puberty sets in through a natural process called ovarian follicle atresia, leaving a woman with around , eggs at the time of puberty.
Of those, it is estimated that women may lose as many as a thousand eggs per month over her fertile years. Science goes on to tell us that only the best quality eggs will be released and that, over time, the overall quality of these eggs begins to diminish as menopause approaches.
This is commonly believed to be the reason why women of an advanced maternal age have difficulty achieving pregnancy with their own eggs.
Despite all of this traditional wisdom, new studies are beginning to suggest that a woman may, in fact, be able to produce new eggs in her lifetime. The theory is based around the existence of stem cells found within the ovaries. This theory stems from a finding back in , when researchers encountered germ cells called oogonial stem cells in the ovaries of female mice.
These cells are capable of dividing and generating new oocytes which become new eggs. Advanced medical tools allow scientists to see how many times a cell has divided over its lifetime, and if conventional science stands true, all human eggs would have the same number of divisions, as all eggs should be present at birth. While the research is still in its infancy and has only been conducted on mice at this point, it suggests that fertility and egg development may continue long after birth.
To learn more about becoming an egg donor with Growing Generations click here. Kim Bergman, PhD, a licensed psychologist of 26 years, has specialized in the area of gay and lesbian parenting, parenting by choice and third party assisted reproduction for over two decades.
Bergman has created a comprehensive psychological screening, support and monitoring process for Intended Parents, Surrogates and Donors. She is on the national Emeritus board of the Family Equality Council. Bergman writes, teaches and speaks extensively on parenting by choice. Bergman created her own family using third party assisted reproduction and she lives with her wife of 35 years.
Her two daughters are in college. Let us do the work for you. Click below to have us contact you to book a free consultation or financial analysis, or to answer any questions you have.
Are You Born with All of Your Eggs?
Conventional science has taught women for years that they are born with all of the eggs they will ever have. The theory has been that women are born with one to two million immature eggs at birth, and they will slowly begin losing them over the course of their lifetimes. Many of those eggs will be lost before puberty sets in through a natural process called ovarian follicle atresia, leaving a woman with around , eggs at the time of puberty. Of those, it is estimated that women may lose as many as a thousand eggs per month over her fertile years.
Then, around 35, the decline starts to get a bit steeper until all eggs have been depleted menopause. Source: Wallace W, Kelsey T. Human Ovarian Reserve from Conception to the Menopause. During each menstrual cycle, a certain number of these follicles are activated to prepare for ovulation, but just one egg takes center stage to mature and be released from the ovary.
Beating Your Biological Clock – How It Works
The ovaries are filled with follicles. Follicles are fluid-filled structures in which the oocyte also called egg grows to maturity. Current knowledge indicates that females are born with their entire lifetime supply of gametes. Females are not capable of making new eggs, and in fact, there is a continuous decline in the total number of eggs each month. Over the next years of a female's reproductive life, the entire egg supply will be depleted. Although no one can know with absolute certainty the number of eggs remaining within the ovaries at any given time, most women begin to experience a significant decrease in fertility the ability to conceive a child around the age of At the time of menopause, virtually no eggs remain. The large supplies of eggs within each ovary are immature, or primordial, and must undergo growth and maturation each month.
Normal Ovarian Function
The female reproductive system provides several functions. The ovaries produce the egg cells, called the ova or oocytes. The oocytes are then transported to the fallopian tube where fertilization by a sperm may occur. The fertilized egg then moves to the uterus, where the uterine lining has thickened in response to the normal hormones of the reproductive cycle.
5 Facts About the Female Egg Cell
Female Reproductive System