Human Eggs picturesAdvanced Photoshop Pictures Contest - 25 image entries
Contest Directions: 
This week doctors announced a new fertility treatment technique which will allow them to grow human eggs in clinics. The pioneering technique will take an ovarian tissue with immature eggs from a woman, and freeze them until a woman decides to conceive and have a baby. At that time the immature eggs are cultivated with a special hormone to grow into mature eggs ready for fertilization. Such fertility treatment breakthrough is especially important for business women who are too busy to start a family, but want to make sure they will be able to have a baby later.
In this contest let us show how life would be different if humans laid eggs and hatched from eggs (e.g. like birds). Some examples are: a woman holding an egg with a hatching baby, nests with human eggs, birth related products and advertisements. You can also show fully grown adult humans - politicians and celebrities, or anyone else - hatching from eggs or laying eggs. For the purposes of this contest we will allow both men and women to lay eggs.
Please make sure your entries are safe for work.
[ browse best gallery pictures ] Tags: human eggs
Jackpot: 1st place: $5, 2nd place: $3 , 3rd place: $2
Started: 9/23/2007 6:00:00 AM, Ended: 9/25/2007 6:00:00 AM
|  |
|
|
| This contest is fueled by the following news: |
| | Pregnancy lasts for approximately 40 weeks (Pregnancy period may vary from 38 to 42 weeks). For convenience, term “obstetric month” is used in practice, which is equivalent to 4 weeks. As a rule, calendar month is longer. Hence the difference between calendar and obstetric months: Pregnancy lasts for 9 calendar months or 10 obstetric months. Our calendar is maintained according to obstetric months.
From conception upto fourth week:
1. Ovulation
Approximately on 14th day of menstrual cycle, the ovum matures and is ready for fertilization. It comes out of ovary and falls into uterine [fallopian] tube, where it remains viable for upto 24 hours; If fertilization does not occur, then ovum degenerates and comes out with uterine discharges during next.
2. Fertilization
Sperm contains substance, which dissolves the membrane of ovum that allows spermatozoid to penetrate into it. After this, the other sperm cannot penetrate inside. Spermatozoid merges with ovum and single cell embryo is formed – Zygote.
Large quantity of sperms flow back and portion of spermatozoids, which are already inside the female organism, cannot reach the target but some of them through the cervix of uterus fall into the cavity of uterus and from there – into one of the fallopian tubes. Here, spermatozoids can remain viable for 48 hrs.
3. Division of fertilized cell
Moving down along the fallopian tube, fertilized ovum starts dividing into multiple cells.
4. Movement towards uterus
Zygote reaches the cavity of uterus approximately on 4th day after fertilization. By this time, it resembles a ball containing liquid. The ball is very small and undifferentiated but already contains around 100 cells. In subsequent days, zygote moves inside the uterus.
5. Implantation
By the end of 3rd week, zygote penetrates into the soft uterine wall. This is called implantation. As soon as the zygote gets securely implanted in the wall, fertilization process is accomplished. Outer cells of embryo penetrate into the epithelium of the uterus and join with the blood vessels of uterus to develop into placenta in the later stages. Other cells develop into umbilical cord and membranes, protecting the fetus. Inner cells divide into three layers and give rise to formation of various organs and tissues.
6. Sex of the child
Sex of the child is determined by chromosomal set of spermatozoids. Spermatozoid with male set of chromosomes moves faster but is short-lived in comparison with female set. Hence, if the conception occurs in ovulation period (around 14 days before menstruation) the chances of having a male child increases and the probability of having a girl child increase if the conception occurs 2-3 days before.
7. Expected date of delivery
The period from the time of conception till the birth of child should be approximately 266 days. In order to calculate the expected date of delivery (EDD) (in a 28 day menstrual cycle, where ovulation occurs on 14th day), count 280 days (266+14) from 1st day of last menstrual period (LMP).
|
|
| | 25 Contest Pictures Page 1 2 3 - View All
|
|
