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16 Cards in this Set
- Front
- Back
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Anencephaly
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Failure of the anterior nural tube region to close
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Cavitation
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Formation of a space within mass of cells
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Delaminate
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cells dissociate from an embryonic epithilian layer and migrate as mesenchymal cells.
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Ectopic
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Outside of normal position. e.g. Transplantation of embryonic cells to a new (Ectopic) site
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Floor Plate
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A specialized non-neuronal cells situated at the ventral midline of the neural plate/tube
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Neural Crest
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Transient structure composed of cells originally located in the dorsal most portion of the neural folds and closing neural tube
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Neural FOLDS
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Bilateral elevated portions of the neural plate flanking either side of the neural groove
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Neural Groove
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A midline ventral depression in the neural plate
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Neural Plate
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That portion of the dorsal ectoderm that becomes specified to become NEURAL ECTODERM
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Neuraxis
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The brain and spinal cord. In developmental terms reffers to neural tube from its costal to caudal end
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Neuroepithilium
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A single layer of rapidly dividing neural stem cells situated adjacent to the lumen of the neural tube
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Neurulation
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The process by which neural plate develops into a neural tube
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Primary neurulation
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The development of the neural tube from the neural plate
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Secondary neuralation
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The development of the neural tube from mesenchyme caudal to the posterior neuropore
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Sonic Hedgehog (SSH)
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Secreted paracrine factor that induces specific transcribtion factors. Made by notochord and floor plate.
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Spina Bifida
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Birth defect resulting from an unclosed section of the posterior neural tube or subsequent rapture of the posterior neural tube.
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