Chap41_2008 - 3 You should know the sequence of...

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Chapter 41 Animal Development Vocabulary amnion blastocyst chorion chorionic villus cleavage development differentiation embryonic disc embryonic stem cells extraembryonic membrane fetal alcohol syndrome fetus gastrulation implantation inner cell mass labor lactation mammary glands organogenesis placenta prolactin Things to know: 1. Where is the human egg usually fertilized? 2. When does implantation occur?
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Unformatted text preview: 3. You should know the sequence of developmental stages (cleavage, gastrulation, organogenesis) and in general what takes place in each. 4. Describe the structure of the placenta. 5. What types of substances can cross the placenta and potentially harm the developing fetus? 6. Where do embryonic stem cells come from and how are they useful to medicine?...
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