Just the Highlights Stages of Prenatal Development The approximately 9-month period between fertilization and birth transforms a single cell into a complete human being. Test your knowledge of the events that occur in each stage by highlighting the events of the pre-embryonic stage in pink, the events of the embryonic stage in blue, and the events of the fetal stage in yellow. 1. Formation of the amnion, yolk sac, allantois, and chorion 8. Begins sixteen days after conception and lasts for 6 weeks 2. Begins at fertilization 3. Involves rapid growth 9. Formation of the embryonic disc 10. Begins the eighth week and lasts until birth 11. Development of the placenta and umbilical cord 12. Formation of the three germ layers 4. Differentiation of germ layers into organs and organ systems 5. Fusion of the trophoblast with the endometrium 13. Encompasses the time of the zygote 6. Movement that can be felt by the mother occurs 14. The heart begins to beat 7. Formation of the amniotic cavity
Just the Highlights Stages of Prenatal Development The approximately 9-month period between fertilization and birth transforms a single cell into a complete human being. Test your knowledge of the events that occur in each stage by highlighting the events of the pre-embryonic stage in pink, the events of the embryonic stage in blue, and the events of the fetal stage in yellow. 1. Formation of the amnion, yolk sac, allantois, and chorion 8. Begins sixteen days after conception and lasts for 6 weeks 2. Begins at fertilization 3. Involves rapid growth 9. Formation of the embryonic disc 10. Begins the eighth week and lasts until birth 11. Development of the placenta and umbilical cord 12. Formation of the three germ layers 4. Differentiation of germ layers into organs and organ systems 5. Fusion of the trophoblast with the endometrium 13. Encompasses the time of the zygote 6. Movement that can be felt by the mother occurs 14. The heart begins to beat 7. Formation of the amniotic cavity
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter42: Animal Development
Section: Chapter Questions
Problem 4CT: If an embryo splits at the two-cell stage, each of the resulting identical twins will have its own...
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The approximately nine month. Between fertilization and birth or transforms a single cell into a complete human being. Test your knowledge of the events that occur in each stage by highlighting the events of the pre-embryonic stage and pink the events of the embryonic stage and blue and the events of the fetal stage in yellow.
Transcribed Image Text:Just the Highlights Stages of Prenatal Development
The approximately 9-month period between fertilization and birth transforms a single cell into a complete human
being. Test your knowledge of the events that occur in each stage by highlighting the events of the pre-embryonic
stage in pink, the events of the embryonic stage in blue, and the evemts of the fetal stage in yellow.
1. Formation of the amnion, yolk sac, allantois, and
chorion
8. Begins sixteen days after conception and lasts for
6 weeks
2. Begins at fertilization
9. Formation of the embryonic disc
3. Involves rapid growth
10. Begins the eighth week and lasts until birth
11. Development of the placenta and umbilical cord
12. Formation of the three germ layers
4. Differentiation of germ layers into organs and
organ systems
5. Fusion of the trophoblast with the endometrium
13. Encompasses the time of the zygote
6. Movement that can be felt by the mother occurs
14. The heart begins to beat
7. Formation of the amniotic cavity
Conceptualize in Color Embryonic and Fetal Membranes
Learn to differemtiate between the various membranes surrounding the embryo and fetus by coloring them as described.
• Uterus: Pink
• Amniotic fluid: Blue
• Yolk sac: Yellow
• Chorion: Green
• Umbilical cord: Gray
• Chorionic villi: Red
• Amnion: Orange
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