How Sperm Meets an Egg to Fertilize a Fetus in the Mother’s Womb

This is how the sperm meets an egg until it is fertilized as a healthy fetus in the mother’s womb.

The egg swims through a 15cm long, narrow fallopian tubes before reaching the uterus. Its adjacent nutritional cells seem as though a beautiful ring that engulfs around it. Very soon, it will meet with the sperm to start the process of fertilization.

Approximately 5 million of sperms will swim through their final target- the egg that is hidden in the fallopian tube. These sperms have some tremendous forces and large in volumes, nevertheless, only one of them will achieve its mission by reaching the egg.

The outer layer of the egg is protected by a layer of transparent coating, which looks like a beautiful planet suspending in the universe. After crossing more bridges successfully, the sperms finally meet the egg. Nevertheless, the egg membrane becomes a hurdle for the sperms to pass through. At this moment, the sperms plunge their heads to drill deep into the membrane layer of the egg. Simultaneously, they hit their tails by swaying around the egg. Then, the egg follows gradually their tails’ movements in a counterclockwise direction to rotate around them.

This time, the sperms have their heads plunged into the egg. We can clearly see their middle and end parts that are revolving around the egg. They are just like rotating drills moving non-stop while flapping their tails by putting more efforts in order to squeeze through the centre of the egg.

After being fertilized for eight days, embryo completed its “landing” mission. It tries to embed itself into the endometrium (inner membrane of the uterus). This time, it starts to split into a few hundred of cells.

After having fertilized for nearly 6 weeks, human shape is formed. Its heart beat is 140 to 150 beats per minute. Its heartbeat is two fold of its mother’s.

This is a 10-week fetus developed in the mother’s womb.

This is a fetus that has developed within 11 weeks. During the forth month of the pregnancy, the fetus grows from 5cm to 10cm in length.

This is a four-month-and-a-half fetus in the mother’s womb. He moves his arms flexibly and he tends to place his finger near his lip to start sucking on it.

This is a 28-week fetus developed in the mother’s womb.

This 7-month fetus is sleeping quietly and peacefully in the mother’s womb. It looks like a tiny sleeping handsome prince.

The fetus has its legs clearly seen in the mother’s womb.

This is a charming look of the fetus in the mother’s womb.

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25 Responses to “How Sperm Meets an Egg to Fertilize a Fetus in the Mother’s Womb”

  1. Anne Lyken-Garner Says...

    On February 8, 2008 at 9:12 am

    I love the cute pictures of the fetuses. They make me broody.


  2. IcyCucky Says...

    On February 9, 2008 at 6:25 am

    Bring back memory…


  3. Judy Sheldon Says...

    On February 9, 2008 at 9:04 am

    Chan, this is such a touching article, wonderfully written and illustrated.


  4. Alexa Gates Says...

    On February 10, 2008 at 9:45 am

    great health lesson :)


  5. nobert bermosa Says...

    On April 29, 2008 at 12:18 pm

    nice article, this will be very helpful in explaining to kids how they came into being,


  6. Lucy Lockett Says...

    On April 29, 2008 at 7:47 pm

    How beautiful, protected and safe!


  7. yulia madjid Says...

    On July 5, 2008 at 11:15 am

    thanks for all information. actually I’m working in 9months free magazine in Jakarta, and if you don’t mind I will take the information and some of the photos with your permission. thankyou again..


  8. CHAN LEE PENG Says...

    On July 6, 2008 at 6:43 pm

    To Yulia Madjid,

    You’re strictly not allow to take the information and photo to publish in your magazine. Your intentions are to almost copy my article verbatim (word for word) and in any literary circle that is incorrect. I do not give you permission to do so.


  9. 1A2 Says...

    On July 22, 2008 at 7:23 am

    Cuteeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

    :3
    +3
    *3
    @3


  10. Trev Says...

    On August 31, 2008 at 1:17 pm

    intersting post, thank you =)
    could you say the author name of 4-th photo? is it a real microphotography and not drawn picture?


  11. MauJadi Says...

    On September 8, 2008 at 5:32 am

    God’s creation is such a beautiful thing.


  12. jHOy yAmbAo Says...

    On April 1, 2009 at 9:59 pm

    tnx 4 d iNfO.. acTuALLy im pregnant ryT nOw.. sO 2 oL d GirLs soOn 2 bE mOmmy Lyk mE.. cOngrAtZ aNd kEEp sAfE. gOdbLesS.. mwAH..


  13. sri Says...

    On May 6, 2009 at 7:10 am

    superrrrrrrrrrrrr


  14. sri Says...

    On May 6, 2009 at 7:11 am

    superrrrrrrrrrrrr


  15. sri Says...

    On May 6, 2009 at 7:13 am

    i love this bcaz i will become a mother soon.so i love thissssssssssss


  16. Deepthi Says...

    On May 7, 2009 at 1:29 am

    Excellent . it’s heart touching .


  17. KEVIN G MONEY AKA HAITIAN BOI DA PRINCE* Says...

    On May 14, 2009 at 9:35 am

    wow this is touching


  18. wayne jr. Says...

    On May 14, 2009 at 11:18 am

    i dont a baby because i F.H.G.M


  19. darreen Says...

    On May 14, 2009 at 12:41 pm

    sex is cool i want to do it dogiestlye


  20. Dylan Osley Says...

    On May 19, 2009 at 1:53 pm

    this is a good web site it was use ful for health class.


  21. dick jhonsin Says...

    On May 19, 2009 at 1:55 pm

    awsom grafics dude


  22. aimee Says...

    On August 31, 2009 at 9:28 pm

    i really liked it it eas really interesting and at school we are learning about sex education and i am in grade 5


  23. eddie Says...

    On September 21, 2009 at 8:56 pm

    try to till that for people that supports Abortion.


  24. Jes Says...

    On October 19, 2009 at 6:35 am

    This is a good teory , just imagine this in your womb , it will really be fantastic.
    Those baby are really very cute in their mother womb and it’s always like that.


  25. rufii Says...

    On November 2, 2009 at 3:14 am

    very very informative


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