Term
| Cell cycle: G1, restriction point, S phase, G2, M, G0 |
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Definition
G1: proteins that block/initiate division expressed
restriction point: mitosis no matter what
S: DNA replicated
G2: mitosis proteins expressed
M: cell divides in 2 in pro, meta, ana, telo, cytokinesis
G0: differentiate and function |
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Term
| Depict cell migration through the mitosis phases |
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Definition
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Term
| Name the 2 layers formed as cells stop dividing and begin differentiating |
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Definition
| marginal, mantle, and ventricular layers |
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Term
| what does uneven cell division lead to? |
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Definition
[image][image]
uneven accumulation of postmitotic cells around the circumference of the tube
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Term
| Identify alar and basal plates and name their functional domains |
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Definition
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Term
| How does the 4th ventricle form? |
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Definition
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Term
| What do alar and basal plates differentiate into? |
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Definition
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Term
| what are cranial nerve nuclei derived from? |
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Definition
| a single fuctional cell column each: the 6 that differentiated from alar and basal plates |
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Term
| how are nuclei organized in the brainstem? |
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Definition
| discontinuous columns of functionally related cells |
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Term
| What is formed from the metencephalon and where do those cells come from? |
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Definition
[image]
pons and cerebellum
migration from alar and basal plates to undergo further cell division |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| What does the choroid plexus develop from? |
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Definition
| Invagination of roof plate and pia into the 4th ventricle |
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Term
| What part of the CNS forms from mesoderm? |
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Definition
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Term
| What cell types come from neural tube? |
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Definition
| all neurons, astrocytes, oligodendrocytes, ependymal cells |
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Term
| What cell types come from the neural crest? |
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Definition
most sensory neurons
autonomic neurons
schwann cells
satellite cells |
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Term
| What cell types come from neural placodes? |
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Definition
| some neurons of cranial nerve sensory ganglia |
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