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Cell Proliferation
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- 1Cell ProliferationBrain developed - 5 fluid vesicles.
fluid filled space= adult ventricular system - 2Early Development of vesicles2 layers- Marginal and Ventricular zones
Ventricular-lines inside vesicle
Marginal- faces overlying pia - 3Telecephalic vesicleCellular ballet performed:
Rise to glia, neurones and visual cortex - 41st Position (Extension)Cell in ventricular zone extends:
Reaches upward to glia - 52nd Position (migration)Nucleus of cell migrates up to pial surface
DNA copied - 63rd position (Nucleus copies)Genetic info= 2 copies
Settles on Ventricular surface - 74th Position (Retraction)Cell retracts arm from pial surface
- 85th Position (Division)Cell divides in two
- 9Fate of new Daughter CellsDepend on type of cleavage of:
Ventricular Precursor Cell - 10Vertical CleavageRemain in daughter cell: cont. division
Early development: expand neuronal precursors - 11Horizontal cleavageDaughter cell furthest away ventricular surface migrates- cortex
DIVISION STOPS
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- Fichas sobre Cell Proliferation, creado por miss_kj el 02/06/2015.
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- miss_kj
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