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| Line 8: |
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| - true | | - true |
| + false | | + false |
| || How can that be as we have not yet begun to explore the topic. | | || If you said '''true''', how can that be, as we have not yet begun to explore the topic. You clearly don't understand enough to answer this first question corrctly. |
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| {The central nervous system forms in the sequence:
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| |type="()"}
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| - norochord to neural plate to neural tube
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| - neural tube to neural plate to neural groove
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| + neural plate to neural groove to neural tube
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| - neural plate to neural crest to neural zone
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| ||The sequence '''neural plate to neural groove to neural tube''' represents the gradual folding of a flat surface sheet of ectodermal cells into a closed tube isolated from the embryo surface. The '''notochord''' is part of the mesoderm and regulates the initial overlying differentiation process. The '''neural crest''' are a population at the edge of the neural plate that do not get incorporated into the neural tube. I think I made up '''neural zone'''.
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| {The neural plate is narrower at the caudal (tail) end and therefore closes earlier than the broad cranial (head) end.
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| |type="()"}
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| - true
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| + false
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| || The caudal or posterior neuropore closes after the cranial or anterior neuropore.
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| {The correct sequence from cranial to caudal of the secondary brain vesicles is:
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| |type="()"}
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| - prosencephalon, mesencephalon, metencephalon, myelencephalon, rhombencephalon
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| - telencephalon, diencephalon, metencephalon, mesencephalon, myelencephalon
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| + telencephalon, diencephalon, mesencephalon, metencephalon, myelencephalon
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| - prosencephalon, diencephalon, mesencephalon, myelencephalon, metencephalon
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| ||The '''prosencephalon''' and '''rhombencephalon''' are primary brain vesicles. The others are distractors using your lack of understanding of what the terms mean.
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| </quiz> | | </quiz> |
