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Conception & Fetal Development
Objectives
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After completing this chapter, you will be able to:
- Explain the differences between mitotic cellular division and meiotic cellular division.
- Compare the processes by which ova and sperm are produced.
- Describe the process of fertilization.
- Identify the differing processes by which fraternal (dizygotic) and identical (monozygotic) twins are formed.
- Describe in order of increasing complexity the structures that form during the cellular multiplication and differentiation stages of intrauterine development.
- Describe the development, structure, and functions of the placenta during intrauterine life.
- Summarize the significant changes in growth and development of the fetus in utero at 4, 6, 12, 16, 20, 24, 28, 32, 36, and 38 weeks postconception.
- Identify the vulnerable periods during which malformations of the various organ systems may occur, and describe the resulting congenital malformations.
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