Template:BGDA Practical 6 - Week 8 Interactive: Difference between revisions
From Embryology
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|| Both neurons and glia differentiate from ventricular neural stem cells. Neurons first and later goal development. | || Both neurons and glia differentiate from ventricular neural stem cells. Neurons first and later goal development. | ||
{Which of the following develops in the extra-embryonic coelom? | {Which of the following structures develops in the extra-embryonic coelom? | ||
|type="()"} | |type="()"} | ||
- lung buds | - lung buds | ||
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+ the ileum | + the ileum | ||
- none of the above | - none of the above | ||
|| The ileum (small intestine) develops and grows in length during the embryonic and early fetal period within the extra-embryonic coelom outside the body cavity. | || The ileum (small intestine) develops and grows in length during the embryonic and early fetal period lying within the extra-embryonic coelom outside the body cavity. | ||
{Which of the following statements about abnormal development is most correct. | |||
|type="()"} | |||
- all developmental abnormalities are either genetic or environmental in origin. | |||
- teratogens refer to factors that alter DNA structure. | |||
+ teratogens causing major environmental abnormalities mainly during the embryonic period | |||
= a teratogen will always generate the same abnormality no matter the time of exposure | |||
- none of the above | |||
|| Teratogens cause major environmental abnormalities mainly during the embryonic period. | |||
</quiz> | </quiz> | ||
