Difference between revisions of "Template:BGDA Practical 14 - Placental Functions Interactive"

From Embryology
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|type="[]"}
 
|type="[]"}
 
-   glycogen
 
-   glycogen
|| Incorrect! glycogen is synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex.
+
|| Incorrect! glycogen is synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex and is then used by the placenta as estrogen precursors.
 
+   dehydroepiandrosterone-sulphate
 
+   dehydroepiandrosterone-sulphate
|| Correct! {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex.
+
|| Correct! {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex and is then used by the placenta as estrogen precursors.
 
-   cholesterol
 
-   cholesterol
|| Incorrect! cholesterol is synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex.
+
|| Incorrect! cholesterol is synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex and is then used by the placenta as estrogen precursors.
 
-   fatty acids
 
-   fatty acids
|| Incorrect! fatty acids are synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex.
+
|| Incorrect! fatty acids are synthesised by the placenta, {{dehydroepiandrosterone-sulphate}} ({{DHEA-S}}) is produced by the fetal adrenal cortex and is then used by the placenta as estrogen precursors.
  
 
</quiz>
 
</quiz>

Revision as of 17:47, 1 June 2019

Placental Functions Interactive Component

Attempt the Quiz - Placental Functions  
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Here are a few simple Quiz questions that relate to Placental Functions from the practical.

1 The difference in oxygen tension between the umbilical artery and umbilical vein is about:

  100 pO2 (torr)
  55 pO2 (torr)
  45 pO2 (torr)
  10 pO2 (torr)
  none of the above are correct

2 Which of the following hormones produced by the placenta is important for initially preserving the pregnancy?

  Human chorionic gonadotrophin
  Human chorionic somatommotropin
  Human chorionic thyrotropin
  Human chorionic corticotropin

3 Which of the following hormones produced by the placenta is important for later preserving the pregnancy?

  progesterone
  Human chorionic somatommotropin
  Human chorionic gonadotrophin
  Human chorionic thyrotropin
  Follicle Stimulating Hormone
  Relaxin

4 Which of the following options are the roles of placental estrogens.

  stimulates growth of the maternal uterus myometrium
  antagonizes the maternal uterus myometrial-suppressing activity of other hormones
  stimulates maternal mammary gland ductal growth
  stimulates maternal mammary gland alveolar growth
  stimulates development of female fetal ovary

5 Which of the following organisms can cross the "placental barrier"?

  cytomegalovirus
  rubella
  measles
  malaria
  listeria

6 The placenta is said to have a "metabolic" role in the synthesis compounds except for:

  glycogen
  dehydroepiandrosterone-sulphate
  cholesterol
  fatty acids


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Practical 14: Implantation and Early Placentation | Villi Development | Maternal Decidua | Cord Development | Placental Functions | Diagnostic Techniques | Abnormalities

Additional Information: endocrine placenta