Summary: The Developing Brain
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Embryonic brain development
This is a preview. There are 13 more flashcards available for chapter 23/11/2015
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Which structures form out of the endoderm?
urinary, digestive and respiratory systems -
Which structure comes from the notochord?
vertebral column -
Which structure comes from the neural tube?
CNS -
How is dorsoventral specification achieved?
A network of inductive signals specify the neuron types via specific combination of transcription factors -
What are homeotic genes?
Similar genes(HOX genes), are transcription factors that specify segment identity to create anteroposterior specification -
What is hensens node?
A knot which moves anterior to posterior relasing more Retinoic acid as it grows, regulating the colinear expression of HOX genes. -
What are the two zones where neuro genesis takes place?
Ventricular zone and the sub ventricular zone -
What neurons are generated in the ventricular zone?
It are neuroepithelial stem cells which generate projection neurons and are only active during development -
What neurons are generated in the subventricular zone?
The germinal zone generates interneurons that migrate to the olfactory bulb and the into the hippocampus and are active throughout life. -
How does radial migration work?
Cells go up from the ventricular zone to the cortical plate through the previous layer
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