Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
decidual response
|
in response to raised progesterone levels, cells enlarge b/c of glycogen and lipid accumulation in their cytoplasm, happen as a result of the blastocyst implanting into the endometrium.
|
|
|
early placental development
|
proliferation of trophoblast and making of chorionic sac and cilli.
|
|
|
smooth corion
|
villi which have degenerated, producing a relattevely avascular bare area
|
|
|
intervillous space
|
contains the lacunae which developed in the syncytiotrophoblast in 2nd week.
|
|
|
the chorion
|
The chorion is one of the membranes that exist during pregnancy between the developing fetus and mother. It is formed by extraembryonic mesoderm and the two layers of trophoblast and surrounds the embryo and other membranes. The chorionic villi emerge from the chorion, invade the endometrium, and allow transfer of nutrients from maternal blood to fetal blood.
|
|
|
primary chorion villi
|
Primary The chorionic villi are at first small and non-vascular. End of 4th week trophoblast only
|
|
|
secondary chorion villi
|
Secondary. The villi increase in size and ramify, while the mesoderm grows into them. 5th week trophoblast and mesoderm[1]
|
|
|
tertiary chorion villi
|
Tertiary Branches of the umbilical vessels grow into the mesoderm, and in this way the chorionic villi are vascularized. 5th - 6th week trophoblast, mesoderm, and blood vessels [1]
|
|
|
fetal part of placenta
|
villous chorion
|
|
|
meternal part
|
formed by the decidual .
|
|
|
cytotrophoblastic shell
|
external layer of trophoblastic cells on the the maternal surface of the placenta, attacheds the fetal part, the villous chiorn to the maternal part, decidua basalis.
|
|
|
Which membrane ruptures during labor?
|
the amniochorionic membrane, presents of the escape of amnionic fluid
|
|
|
Where does blood pass through?
|
umbilical arteries to the placenta, no intermingling of fetal and maternal blood.
|
|
|
Umbilical vein
|
carries oxygen rich blood to fetus
|
|
|
endometrial veins
|
contain used blood from the fetus.
|
|
|
gravid endometrium
|
functional layer of the endometrium in a pregnant woman that separates from the remainder of the uterus after parturition
|
