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

From Embryology
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{The difference in oxygen tension between the umbilical artery and umbilical vein is about:
 
{The difference in oxygen tension between the umbilical artery and umbilical vein is about:
 
|type="()"}
 
|type="()"}
- &nbsp; 100 pO<sub>2</sub>(torr)
+
- &nbsp; 100 pO<sub>2</sub> (torr)
- &nbsp; 55 pO<sub>2</sub>(torr)
+
|| Incorrect! This is the maternal arterial tension. The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub> (torr) and umbilical vein 30 pO<sub>2</sub> (torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that in the maternal circulation between arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub> (torr) difference of about 45 pO<sub>2</sub> (torr). See [[:File:Placenta_oxygen_exchange_levels.jpg|image - Placenta oxygen exchange levels]].
- &nbsp; 45 pO<sub>2</sub>(torr)
+
- &nbsp; 55 pO<sub>2</sub> (torr)
+ &nbsp; 10 pO<sub>2</sub>(torr)
+
|| Incorrect! This is the maternal venous tension. The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub> (torr) and umbilical vein 30 pO<sub>2</sub> (torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that in the maternal circulation between arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub> (torr) difference of about 45 pO<sub>2</sub> (torr). See [[:File:Placenta_oxygen_exchange_levels.jpg|image - Placenta oxygen exchange levels]].
|| Correct! The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub>(torr) and umbilical vein 30 pO<sub>2</sub>(torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that the maternal arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub>(torr) difference of about 45 pO<sub>2</sub>(torr).
+
- &nbsp; 45 pO<sub>2</sub> (torr)
 +
|| Incorrect! This is the maternal difference in oxygen tension. The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub> (torr) and umbilical vein 30 pO<sub>2</sub> (torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that in the maternal circulation between arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub> (torr) difference of about 45 pO<sub>2</sub> (torr). See [[:File:Placenta_oxygen_exchange_levels.jpg|image - Placenta oxygen exchange levels]].
 +
+ &nbsp; 10 pO<sub>2</sub> (torr)
 +
|| Correct! The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub> (torr) and umbilical vein 30 pO<sub>2</sub> (torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that in the maternal circulation between arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub> (torr) difference of about 45 pO<sub>2</sub> (torr). See [[:File:Placenta_oxygen_exchange_levels.jpg|image - Placenta oxygen exchange levels]].
 
- &nbsp; none of the above are correct
 
- &nbsp; none of the above are correct
File:Placenta_oxygen_exchange_levels.jpg
+
|| Incorrect! The difference in oxygen tension in the placenta between the umbilical artery 20 pO<sub>2</sub> (torr) and umbilical vein 30 pO<sub>2</sub> (torr) is therefore about 10 pO<sub>2</sub>(torr). This is significantly less that in the maternal circulation between arterial 100 pO<sub>2</sub>(torr)/venous 55 pO<sub>2</sub> (torr) difference of about 45 pO<sub>2</sub> (torr). See [[:File:Placenta_oxygen_exchange_levels.jpg|image - Placenta oxygen exchange levels]].
 +
 
  
 
</quiz>
 
</quiz>

Revision as of 17:15, 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.

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


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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