Journey of the Sperm by Amanda Orciuch and Emily Strojny

Journey of the Sperm by Amanda Orciuch and Emily Strojny

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Storyboard Description

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Storyboard Text

  • Vagina
  • Wow, I really hate living in this trailer. All I do is sleep!  I wish I could live in a big mansion!
  • Cervix (Cervical Canal)
  • On my way to go get a lottery ticket! 
  • Uterus
  • This road is closed. No one can pass.
  • Millions of sperm are ejaculated and placed in the vagina near the opening of the uterus (cervix). Most of them are destroyed within minutes by deadly acids that protect the vagina from pathogens.
  • Uterotubal Junction and Fallopian Tubes
  • You have to be 18 to purchase a lottery ticket.
  • The  living sperm must make their way through  the cervix located at the end of the vagina.   During ovulation, estrogen softens the mucus that usually keeps the cervix closed so that the sperm can pass.  Sperm travel through the cervical canal, dying  along the way.
  • Fertilization
  • Oh my gosh! I won! I just won the lottery! And I found the perfect house to buy!
  • The remaining 3000 sperm must travel through the uterus to the fallopian tube. Muscular contractions of the uterus help push the sperm to the correct direction of the fallopian tube on the side of the egg. However, they must pass the white blood cell army called the Leukocytes. 
  • Implantation
  • After passing through the uterus, the sperm arrive in the Uterotubal Junction, which is the doorway to the Fallopian tube. Sperm must show the proper swimming characteristics and the correct molecular recognition to pass through. In the Fallopian tube, 10-30 sperm remain. Sperm are now safe from the Leukocytes. They are nourished so they may stay alive for several hours and days
  •  I am 18.
  • The remaining sperm must find the egg in the Fallopian tube. Sperm sense the chemicals from the egg and move towards it. The egg only lives for 24 hours once it is released. The sperm releases enzymes when contact is made with the egg, which allows it to penetrate the "outer coat" of the egg. Once the sperm is inside, chromosomes of the sperm and egg pair 
  • The zygote (union of the sperm and egg) travel down the Fallopian tubes towards the uterus. Cells begin to divide . On the day four, the tiny bundle of cells is named a bastocyst. A few days later, the embryo breaks out of the protective shell and implants in the wall of the uterus and begins growing. 
  • I can't believe this is my new house! 
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