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

Revision as of 16:15, 1 June 2019

Placental Functions Interactive Component

Attempt the Quiz - Placental Functions

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

Additional Information: endocrine placenta

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 {The difference in oxygen tension between the umbilical artery and umbilical vein is about:
 |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
-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>