Week 5 stats

Wednesday, October 8, 2008

This week, the baby is about the size of a PEPPERCORN! ( That's quite a size difference compared to a little tiny poppy seed!)

(www.parents.com)
And here is what they said about his development:
Already a busy little bee, your developing embryo now has three layers. The outer layer, or ectoderm, will develop into the nervous system, while the endoderm, or inner layer, will become the liver, pancreas, intestines, and bladder. This week, the mesoderm, or middle layer, is developing into the heart and circulatory system, which will be the first organs to function. In the weeks to come, the mesoderm will also form the bones, muscles, kidneys and reproductive organs.

This stuff is all so fascinating. I really should have paid more attention in school!