Podcast
Questions and Answers
When does implantation occur?
When does implantation occur?
- 3 days after fertilization
- 6th - 7th days after ovulation (correct)
- After the formation of morula
- 12 weeks after fertilization
What is the function of the decidua basalis?
What is the function of the decidua basalis?
- Protection against laws of transplantation immunology
- Site of implantation & nutrition of blastocyst
- Site of formation of the placenta (correct)
- Embedding of the blastocyst by its embryonic pole into the decidua
What is the weight of a fully formed placenta?
What is the weight of a fully formed placenta?
- 200 gm
- 1 kg
- 300 gm
- 500 gm (correct)
What is the structure of the maternal surface of the placenta?
What is the structure of the maternal surface of the placenta?
What is formed at the ampulla of the Fallopian tube during fertilization?
What is formed at the ampulla of the Fallopian tube during fertilization?
Implantation occurs on the 4th - 5th days after ovulation
Implantation occurs on the 4th - 5th days after ovulation
The decidua is the modified secretory endometrium of pregnancy under the effect of only Progesterone
The decidua is the modified secretory endometrium of pregnancy under the effect of only Progesterone
The placenta is fully formed at 12 weeks and then decreases in size
The placenta is fully formed at 12 weeks and then decreases in size
The fetal surface of the placenta is rough and irregular
The fetal surface of the placenta is rough and irregular
The mechanical attachment of the fetus to the mother is not a function of the placenta
The mechanical attachment of the fetus to the mother is not a function of the placenta
Flashcards
Implantation Day
Implantation Day
Implantation occurs approximately 6-7 days after ovulation.
Decidua Basalis Function
Decidua Basalis Function
The decidua basalis forms the placenta.
Placental Weight
Placental Weight
A fully formed placenta weighs around 500 grams.
Maternal Placental Surface
Maternal Placental Surface
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Zygote Formation Location
Zygote Formation Location
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Implantation Timing (Correct)
Implantation Timing (Correct)
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Decidua and Progesterone
Decidua and Progesterone
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Placenta Formation Complete Time
Placenta Formation Complete Time
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Fetal Placental Surface Description
Fetal Placental Surface Description
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Placental Function: Attachment
Placental Function: Attachment
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Study Notes
Implantation
- Occurs on the 4th - 5th days after ovulation
Decidua
- Modified secretory endometrium of pregnancy
- Under the effect of only Progesterone
- Decidua basalis is a part of the decidua
Placenta
- Fully formed at 12 weeks
- Then decreases in size after 12 weeks
- Fetal surface is rough and irregular
- Not responsible for the mechanical attachment of the fetus to the mother
Fertilization
- Occurs at the ampulla of the Fallopian tube
- Results in the formation of a zygote
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Description
Test your knowledge of the physiology of pregnancy with questions about fertilization, zygote formation, and implantation of the blastocyst. Learn about the union of ovum and spermatozoon, differentiation of the zygote, and the process of embedding the blastocyst into the uterine wall.
