Across
- 4. The resulting portion of neuroectoderm formed during development after the thickening of the trilaminar disc, made possible through specific signaling molecules released by the notochord
- 5. The bordering tissue of the neural plate that gives rise to the peripheral nervous system
- 6. The process that encourages the growth cone of one neuron to grow towards a specific target due to the secretion of membrane-bound chemoattractive cues
- 7. The process by which a neuronal stem cell divides to produce two daughter cells; both neuronal stem cells and differentiated cells can be produced
- 12. The order in which the layers of cells are developed in the cerebral cortex
- 14. Portion of the neuron located at the end of a neurite seeking a synaptic target; this element of the neuron detects and selectively identifies molecular signals within the environment in the efforts of pursuing a synaptic partner
- 16. Collective term for the axons and dendrites of a neuron
- 18. A specialized region of the mesoderm which provides signaling cues during embryonic development, particularly during the formation of the neural plate
- 19. The membrane-bound guidance molecule secreted that selectively discourages a growth cone from growing towards a target, thereby repelling the growth cone from the incorrect target
- 20. The innermost layer of the trilaminar disc; most of the cells in the nervous system are derived from this tissue
- 21. Neurons are born in and migrate from this location to their intended layer of the cerebral cortex, by way of radial glia
- 22. A type of neural cell that can only complete a limited number of cell division cycles, thus limiting the capability of neurons in the brain to divide and create new neurons
Down
- 1. This feature of the cerebral cortex allows for the specific organization of cells within the cortex; cortical cells travel through this inside-out “scaffolding” with the help of radial glia
- 2. The type of stem cell division resulting in either two daughter stem cells or two daughter differentiated cells
- 3. The membrane-bound guidance molecule secreted that selectively encourages a growth cone to grow towards a target, thereby drawing the growth cone towards the correct target
- 8. Function in neurodevelopment to provide transportation for cells forming the specialized layers of the cerebral cortex
- 9. The process by which the neural plate folds in on itself, forming the neural tube and the elementary construction of the central and peripheral nervous system
- 10. The process that discourages the growth cone from growing towards a specific target due to the secretion of membrane-bound chemorepulsive cues
- 11. The process in which new neurons are produced or “born”
- 13. Process that occurs within the cerebral cortex, as neurons born in the ventricular zone must relocate to their intended cortical layer; radial glial cells aid in this process
- 15. The formation that arises when the neural plate involutes, a process known as neurulation; this formation gives rise to the central nervous system
- 17. The type of stem cell division resulting in two daughter cells, one of which is another stem cell, and the other a differentiated cell