10 Questions
When does implantation occur?
6th - 7th days after ovulation
What is the function of the decidua basalis?
Site of formation of the placenta
What is the weight of a fully formed placenta?
500 gm
What is the structure of the maternal surface of the placenta?
Dull red, rough, spongy, irregular & divided into 15-20 cotyledons
What is formed at the ampulla of the Fallopian tube during fertilization?
(46 chromosome) zygote
Implantation occurs on the 4th - 5th days after ovulation
False
The decidua is the modified secretory endometrium of pregnancy under the effect of only Progesterone
False
The placenta is fully formed at 12 weeks and then decreases in size
False
The fetal surface of the placenta is rough and irregular
False
The mechanical attachment of the fetus to the mother is not a function of the placenta
False
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
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.
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