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Questions and Answers
What is the expected duration of a normal pregnancy in weeks post-fertilization?
What is the expected duration of a normal pregnancy in weeks post-fertilization?
Where does fertilization normally take place?
Where does fertilization normally take place?
What is the significance of an ectopic pregnancy?
What is the significance of an ectopic pregnancy?
What are the names and time frames for the three developmental periods?
What are the names and time frames for the three developmental periods?
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What is the initial warning sign of an ectopic pregnancy?
What is the initial warning sign of an ectopic pregnancy?
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What is the treatment for an early ectopic pregnancy without unstable bleeding?
What is the treatment for an early ectopic pregnancy without unstable bleeding?
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What structures are formed in week 2 of development?
What structures are formed in week 2 of development?
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What do the cells of the syncytiotrophoblast do?
What do the cells of the syncytiotrophoblast do?
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What is the function of the amnion?
What is the function of the amnion?
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What happens at the end of implantation?
What happens at the end of implantation?
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What is the structure that forms from the epiblast and hypoblast layers?
What is the structure that forms from the epiblast and hypoblast layers?
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What is the region called where the hypoblast is thickened?
What is the region called where the hypoblast is thickened?
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What is the function of the oropharyngeal membrane?
What is the function of the oropharyngeal membrane?
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What happens on approximately day 9/10 after the formation of the bilaminar germ disc?
What happens on approximately day 9/10 after the formation of the bilaminar germ disc?
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What is the structure that eventually surrounds the entire embryo?
What is the structure that eventually surrounds the entire embryo?
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What is the function of the fibrin plug?
What is the function of the fibrin plug?
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What is the duration of pregnancy from fertilization?
What is the duration of pregnancy from fertilization?
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At what point is prematurity defined?
At what point is prematurity defined?
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When does overdue or post-term occur?
When does overdue or post-term occur?
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What are the three periods into which pregnancy is divided?
What are the three periods into which pregnancy is divided?
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What is the initial result of the fertilization of the egg by the sperm?
What is the initial result of the fertilization of the egg by the sperm?
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Where does implantation of the blastocyst occur?
Where does implantation of the blastocyst occur?
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What is ectopic pregnancy?
What is ectopic pregnancy?
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What is the main cause of maternal death during the first trimester?
What is the main cause of maternal death during the first trimester?
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What is the duration of the considered menstrual cycle?
What is the duration of the considered menstrual cycle?
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How is a woman's due date calculated?
How is a woman's due date calculated?
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Study Notes
Embryology and Pregnancy Development Summary
- Embryology is the study of development from fertilization to birth
- Pregnancy lasts about 266 days or 38 weeks from fertilization
- Prematurity is defined as birth before 37 weeks from the last menstrual period
- Overdue or post-term occurs when the baby has not been born by 40 weeks from the last menstrual period
- Pregnancy is divided into germinal, embryonic, and fetal periods
- Pregnancy begins with fertilization of the egg by the sperm, forming a zygote
- Cleavage of the zygote leads to the formation of a blastocyst
- Implantation of the blastocyst occurs on the posterior superior wall of the uterus
- Ectopic pregnancy, occurring in about 2% of all pregnancies, is when the fertilized egg grows outside the uterus
- Ectopic pregnancy is the main cause of maternal death during the first trimester
- The menstrual cycle is considered to be 28 days in duration, with ovulation occurring around day 14
- A woman's due date is calculated as 280 days (40 weeks) from the onset of the last menstrual period
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Description
Test your knowledge of embryology and pregnancy development with this quiz! From fertilization to birth, explore the stages of pregnancy and learn about key concepts such as prematurity, post-term, and ectopic pregnancy.