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  2. Neuroregeneration - Wikipedia

    en.wikipedia.org/wiki/Neuroregeneration

    Guillain–Barré syndrome – nerve damage. Neuroregeneration in the peripheral nervous system (PNS) occurs to a significant degree. [5] [6] After an injury to the axon, peripheral neurons activate a variety of signaling pathways which turn on pro-growth genes, leading to reformation of a functional growth cone and regeneration.

  3. Neurogenesis - Wikipedia

    en.wikipedia.org/wiki/Neurogenesis

    First, this may generate a subclass of neuronal progenitors called intermediate neuronal precursors (INP)s, which will divide one or more times to produce neurons. Alternatively, daughter neurons may be produced directly. Neurons do not immediately form neural circuits through the growth of axons and dendrites.

  4. Synaptogenesis - Wikipedia

    en.wikipedia.org/wiki/Synaptogenesis

    Synaptogenesis is the formation of synapses between neurons in the nervous system.Although it occurs throughout a healthy person's lifespan, an explosion of synapse formation occurs during early brain development, known as exuberant synaptogenesis. [1]

  5. Development of the nervous system in humans - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_nervous...

    Gradually some of the cells stop dividing and differentiate into neurons and glial cells, which are the main cellular components of the CNS. [2] The newly generated neurons migrate to different parts of the developing brain to self-organize into different brain structures.

  6. Synaptic pruning - Wikipedia

    en.wikipedia.org/wiki/Synaptic_pruning

    The neurons in each cortex are selectively pruned, leaving connections that are made with the functionally appropriate processing centers. Therefore, the neurons in the visual cortex prune the synapses with neurons in the spinal cord, and the motor cortex severs connections with the superior colliculus. This variation of pruning is known as ...

  7. Development of the nervous system - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_nervous...

    The first postmitotic cells must leave the stem cell niche and migrate outward to form the preplate, which is destined to become Cajal–Retzius cells and subplate neurons. These cells do so by somal translocation. Neurons migrating with this mode of locomotion are bipolar and attach the leading edge of the process to the pia.

  8. Neuronal cell cycle - Wikipedia

    en.wikipedia.org/wiki/Neuronal_cell_cycle

    These neurons re-enter the cell cycle as they travel to the ganglion cell layer when they are activated by p75NTR. These neurons are unable to enter mitosis and are stuck in a 4C DNA content state. Cell cycle re-entry by p75NTR is not dependent on Cdk4/6 (Morillo et al., 2012) and, therefore, differs from other cell types that re-enter the cell ...

  9. Adult neurogenesis - Wikipedia

    en.wikipedia.org/wiki/Adult_neurogenesis

    The numbers of neurons born in the human adult hippocampus remains controversial; some studies have reported that in adult humans about 700 new neurons are added in the hippocampus every day, [14] while more recent studies show that adult hippocampal neurogenesis does not exist in humans, or, if it does, it is at undetectable levels. [15]