Placenta Quiz: Difference between revisions
From Embryology
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|| Yes, the endometrium becomes decisualised, deposits fibrinoid and also forms epithelial plaques. | || Yes, the endometrium becomes decisualised, deposits fibrinoid and also forms epithelial plaques. [[2009_Lecture_8#Maternal_Placenta|Maternal Placenta]] | ||
{The human placenta is classified as : | {The human placenta is classified as : | ||
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- Epitheliochoria | - Epitheliochoria | ||
- Mesoeliochorial | - Mesoeliochorial | ||
||Haemochorial - placenta where the chorion comes in direct contact with maternal blood (human) | ||[[h2009_Lecture_8#Placental_Classification|Haemochorial]] - placenta where the chorion comes in direct contact with maternal blood (human) | ||
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|| Stem villi - or anchoring villi, cytotrophoblast cells attached to maternal tissue. | || Stem villi - or anchoring villi, cytotrophoblast cells attached to maternal tissue. [[2009_Lecture_8#Chorionic_Villi|Chorionic Villi]] | ||
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- maternal lacuna, trophoblast layer, endothelial and fetal red blood cell | - maternal lacuna, trophoblast layer, endothelial and fetal red blood cell | ||
- fetal capillary endothelium, villi connective tissue, cytotrophoblast and syncitiotrophoblast | - fetal capillary endothelium, villi connective tissue, cytotrophoblast and syncitiotrophoblast | ||
||Maternal and fetal blood normally do not mix and all exchange occurs across these cellular layers. Later in development the syncitiotrophoblast layer may not be continuous on the villi surface. | ||Maternal and fetal blood normally do not mix and all exchange occurs across these cellular layers. Later in development the syncitiotrophoblast layer may not be continuous on the villi surface. [[2009_Lecture_8#Placental_Function|4 layers separate maternal and fetal blood]] | ||
</quiz> | </quiz> | ||
== Links == | == Links == | ||
