Template:BGDA Practical 6 - Week 3 Interactive: Difference between revisions
From Embryology
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- is a primary inducer during organogenesis | - is a primary inducer during organogenesis | ||
+ is a site of migration of epiblast cells to form the mesoderm | + is a site of migration of epiblast cells to form the mesoderm | ||
|| The primitive streak is a site of migration of epiblast cells to form firstly endoderm and then the mesoderm. | |||
- persists as the parachordal plate | - persists as the parachordal plate | ||
- all of the above are correct | - all of the above are correct | ||
{The migration of intra-embryonic mesoderm occurs between the ectoderm and endoderm to give rise to: | {The migration of intra-embryonic mesoderm occurs between the ectoderm and endoderm to give rise to: | ||
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- ectoderm fused with mesoderm | - ectoderm fused with mesoderm | ||
+ ectoderm fused with endoderm | + ectoderm fused with endoderm | ||
|| The buccopharyngeal membrane is made up of ectoderm fused with endoderm and lies above the cephalic end of notochordal process. | |||
- the cephalic end of notochordal process | - the cephalic end of notochordal process | ||
{The intraembryonic coelom finally forms | {The intraembryonic coelom finally forms | ||
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+ pericardial, pleural and peritoneal cavity. | + pericardial, pleural and peritoneal cavity. | ||
- single pericardial cavity and two pleural and two peritoneal cavities. | - single pericardial cavity and two pleural and two peritoneal cavities. | ||
|| The intraembryonic coelom finally forms the 3 P's. There is only one peritoneal cavity. These other anatomical spaces have noting to do with intraembryonic coelom. The dorsal aortas form within the splanchnic mesoderm. | |||
- neural tube lumen, gastrointestinal tract lumen and neural crest. | - neural tube lumen, gastrointestinal tract lumen and neural crest. | ||
- the paired dorsal aortas running the embryo. | - the paired dorsal aortas running the embryo. | ||
{The amniotic cavity appears initially as a slit-like space within the: | {The amniotic cavity appears initially as a slit-like space within the: | ||
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- extra-embryonic mesoderm | - extra-embryonic mesoderm | ||
+ ectoderm | + ectoderm | ||
|| The {{amniotic cavity}} appears initially as a slit-like space within the ectoderm. | |||
- connecting stalk | - connecting stalk | ||
- endoderm | - endoderm | ||
{Which of the following processes are necessary for the early development | {Which of the following processes are necessary for the early development | ||
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- cell fusion | - cell fusion | ||
- differential growth | - differential growth | ||
+ all of the above | |||
|| '''All''' of these {{developmental mechanisms}} play an important role in the early development of the human embryo. These same processes are also required for later embryonic and fetal development. | || '''All''' of these {{developmental mechanisms}} play an important role in the early development of the human embryo. These same processes are also required for later embryonic and fetal development. | ||
</quiz> | </quiz> | ||
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{{BGDALab7}} | {{BGDALab7}} | ||
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