Across
- 2. The initial layer of cells (outermost) from which the neural tube arises
- 5. Formation of the neural tube
- 8. Cone: Growing end of a neurite, characterized by the lamellipodium and filopodium
- 10. Repels growing axons, works with chemoattractants to allow axons to cross midlines
- 12. Zone: Part of the spinal cord comprised of interneurons; they help convert the motor output into sensory input
- 13. hypothesis: Proposed by Roger Sperry, growing axons and targets have matching chemical markers
- 14. Zone: Part of the cortical plate, facing the pia
- 15. This is a section of the cortical layer that diminishes as development proceeds
- 16. Reproduction and increase in cells comprising the nervous system
- 18. A condition caused by the excess accumulation of cerebral spinal fluid in the ventricles of the brain
- 20. Division: Continual division of neural progenitors
Down
- 1. Plate: This refers to what will eventually become the cerebral cortex during embryonic development
- 3. Process by which axons are attracted to a target via a molecule
- 4. Word to refer to axons and dendrites
- 6. Tube: The structure in which the nervous system develops from, arising from the ectoderm
- 7. Zone: Part of the cortical plate where cell division occurs because of radial glial cells
- 9. The generation of new neurons
- 11. Division: Type of cell division where one daughter cell moves towards its targeted cortex, and ceases to divide, while the other daughter cell remains in the ventricular zone and continues dividing
- 17. Migration: This is when neuronal precursor cells move toward their final destination via radial paths
- 19. Glial Cells: During development, these cells are considered the main source for neuron and astrocyte production