Embryology for K12 Students

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Introduction

This is page has been made to help the younger student (from K to 12) understand some of the basics of how an embryo grows.

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Cartoon of Human Development
This movie covers the 9 months of human development. Starting after fertilization and ending with the fetus just before birth.

The movie also shows how the embryo attaches to the mother's uterus (right) and how the placenta forms.

The movie near the end shows only the fetus.


In the first trimester (1-3 months) we call development an embryo (embryonic) and in the second trimester (4-6 months) and third trimester (7-9 months) we call development a fetus (fetal).


See also Animal Life Cycles and some student Embryology Questions

K12 Links: Start Here | Week 1 | Week 2 | Week 3 | Week 4 | Week 5 to 8 | Arms and Legs | Heart | Fetus | Brain Growth | Eyes and Ears | Animal Development Times | Comparative Embryology


Start Here

Chicken embryo at 12 days

In humans, the growth of a baby inside a mother takes about 9 months.

In chickens, mice and rats this growth only takes about 3 weeks.

Question: How long does it take for cats and dogs to develop? (Dogs)
  • During this time a single cell will grow into many different cell types with different shapes and jobs to do in the body.
  • A similar process will occur in all different embryos.
  • In humans, many important changes occur in the first few weeks of development and much of the following 9 months is growth.


Now follow the growth and changes in the embryo over time.

Next: Week 1

Mouse CT axes E11.5.jpg

Mouse Embryo at 11.5 days (Views of front, right, back and left)

Teachers Note


Cite this page: Hill, M.A. (2014) Embryology Embryology for K12 Students. Retrieved September 2, 2014, from https://php.med.unsw.edu.au/embryology/index.php?title=Embryology_for_K12_Students

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© Dr Mark Hill 2014, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G