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Questions and Answers
What is ectopic pregnancy also known as?
What is ectopic pregnancy also known as?
Implantation somewhere other than the upper portion of the uterus
What is the consequence of rupture in ectopic pregnancy?
What is the consequence of rupture in ectopic pregnancy?
Life-threatening hemorrhage
What is the term for implantation of the fertilized egg in a location other than the uterus?
What is the term for implantation of the fertilized egg in a location other than the uterus?
Ectopic implantation
What type of pregnancy occurs when the fertilized egg implants in the fallopian tube?
What type of pregnancy occurs when the fertilized egg implants in the fallopian tube?
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What is the term for the process of implantation of the fertilized egg in the uterus?
What is the term for the process of implantation of the fertilized egg in the uterus?
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Where does ectopic implantation occur?
Where does ectopic implantation occur?
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What is the outcome of untreated ectopic pregnancy?
What is the outcome of untreated ectopic pregnancy?
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What is the term for the fertilized egg attaching outside the uterus?
What is the term for the fertilized egg attaching outside the uterus?
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What can rupture lead to in ectopic pregnancy?
What can rupture lead to in ectopic pregnancy?
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What is the significance of timely treatment in ectopic pregnancy?
What is the significance of timely treatment in ectopic pregnancy?
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Study Notes
Embryology
- Embryology is the branch of medicine concerned with the study of embryos and their development.
Ovulation
- Around the midpoint of the menstrual cycle (~day 14), a single egg is ovulated and swept into the oviduct.
- The egg has a corona radiata, zona pellucida (ZP-1, -2, and -3), and cortical granules.
Fertilization
- Fertilization usually occurs in the ampulla of the oviduct within 24 hrs.
- The embryo is still contained in the zona pellucida after fertilization.
Blastocyst Development
- Early blastocyst stage occurs around day 3.
- Later blastocyst stage occurs around day 5.
- The blastocyst has an inner cell mass and a blastocoele.
Monozygotic Twinning
- Monozygotic twinning typically occurs during cleavage/blastocyst stages.
Hatching and Implantation
- Hatching of the blastocyst from the zona pellucida occurs just prior to implantation.
- Implantation typically occurs in the upper portion of the uterus.
- Ectopic implantation occurs when implantation takes place somewhere other than the upper portion of the uterus.
- Implantation can lead to life-threatening hemorrhage if it occurs in a location other than the uterus.
Complications
- Tubal pregnancy is a type of ectopic pregnancy.
- Rupture of the ectopic pregnancy can lead to life-threatening hemorrhage.
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Description
Test your knowledge of embryos and their development in this medicine branch. Learn about the study of embryos and their growth.
