Template:BGDA Practical 14 - Villi Interactive: Difference between revisions

Revision as of 14:18, 1 June 2019

Attempt the Quiz - Placental Villi

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

Additional Information: placental villi

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 Here are a few simple Quiz questions that relate to Placental Villi from the practical.
-++Questions to be updated++
 <quiz display=simple>
-{Which of the following is the most correct statement about the primitive streak:
+{The stage of placental villi development where the core is initially solid mesoderm is:
 |type="()"}
-- &nbsp; extends from the primitive node to the parachordal plate
+- &nbsp; primary villi
-- &nbsp; is a primary inducer during organogenesis
+|| Incorrect! Only trophoblast layers at this stage. The secondary villi stage is when the primary villi have been invaded by extra-embryonic mesoderm.
-+ &nbsp; is a site of migration of epiblast cells to form the mesoderm
++ &nbsp; secondary villi
-|| The primitive streak is a site of migration of epiblast cells to form firstly endoderm and then the mesoderm.
+|| Correct! the secondary villi stage is when the primary villi have been invaded by extra-embryonic mesoderm.
-- &nbsp; persists as the parachordal plate
+- &nbsp; tertiary villi
-- &nbsp; all of the above are correct
+|| Incorrect! tertiary villi have formed blood vessels within the extra-embryonic mesoderm. The secondary villi stage is when the primary villi have been invaded by extra-embryonic mesoderm.
+- &nbsp; quaternary villi
+|| Incorrect! There is no such stage as quaternary villi. The secondary villi stage is when the primary villi have been invaded by extra-embryonic mesoderm.
 </quiz>