Journey of the Sperm

Journey of the Sperm
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Storyboard Description

Sophia Sederman

Storyboard Text

  • By:Sophia Sederman    Vagina
  • Time to start my quest and enter the Vagina.
  • Cervix
  • I think it's this one!
  • There are so many staircases! How do I know which one to use?
  • Uterus
  • We beat the white blood cell army!
  • It´s the Fallopian tube!
  • Time to attack the sperm!
  • We are the white blood cell army.
  • Approximately 250 million sperm enter vagina, most of them die. Hopefully princess Cosette will survive and find the golden egg!
  • Uterotubal Junction
  • I know right?! Hopefully we will beat out all of the other sperm.
  • 60,000 remaining sperm must swim single file through tiny channels in the cervical canal, the mucus in the cervix becomes soft and watery so sperm can easily go through. Most of them will die because they get lost in the many passageways. Princess Cosette found a new friend, Princess Colette!
  • Fallopian Tube (Fertilization)
  • I love the Fallopian Tube!
  • It's somewhere up here...
  • I wonder where the egg is, I need to fertilize as soon as possible!
  • About 3,000 sperm are left and have to navigate through the uterus to the Fallopian tube. Muscle contractions help propel sperm in the correct direction on the side of the egg. Sperm are attacked by an army of white blood cells launched by the body´s immune system. The sperm left must  find the doorway to the Fallopian tube.
  • Implantation
  • Sperm must show the proper swimming skills and display the correct molecular recognition in order to be allowed to pass through.
  • We are so good at swimming!
  • Approximately 10-30 sperm remain.  The fallopian tube provides the sperm with nourishment so they can stay alive for several hours, or even days!
  • ph levels!
  • ion concentration!
  • The zygote (union of sperm and egg) travels down the fallopian tube towards the uterus, cells begin dividing. Blastocyst is the name of the tiny bundle cells on day four. Five days later the embryo breaks out of protective shell and implants in the wall of the uterus and begins growing. Cosette and Colette developed from 2 eggs fertilized by 2 sperm, meaning that they are fraternal twins.
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