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Lab Ex. 62 Fertilization & Early Development

Lab Ex. 62 Fertilization & Early Development. zygote. morula. blastocyst. trophoblast. inner cell mass. embryo / gastrula. fetus. placenta. maternal portion. fetal portion. Chorion (maroon). chorionic villi. Amnion (white). amniotic cavity. yolk sac.

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Lab Ex. 62 Fertilization & Early Development

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  1. Lab Ex. 62 Fertilization & Early Development

  2. zygote

  3. morula

  4. blastocyst

  5. trophoblast

  6. inner cell mass

  7. embryo / gastrula

  8. fetus

  9. placenta

  10. maternal portion

  11. fetal portion

  12. Chorion (maroon)

  13. chorionic villi

  14. Amnion (white)

  15. amniotic cavity

  16. yolk sac

  17. Allantois (future umbilical cord)

  18. Fetal circulation

  19. ductus arteriosus Becomes ligamentum arteriosum

  20. ductus venosus Becomes the ligamentum venosum

  21. foramen ovale Becomes fossa ovalis

  22. umbilical cord

  23. umbilical arteries (blue)

  24. umbilical vein (red)

  25. Next: Lab practical III

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