Brain Development

By cnelson485
  • Conception

    Conception

    The egg is fertilized and the process of gestation begins.
  • Neurulation begins/Neural plate forms

    Neurulation begins/Neural plate forms

    Neural plate forms, providing the basis for further brain development and beginning neurulation.
  • Neural Tube Formation

    Neural Tube Formation

    Neural Tube Forms out of Neural Plate to create the basis for the central nervous system.
  • Brain Region Formation Begins

    Brain Region Formation Begins

    Regions like the cerebellum, thalamus, cerebellum and medulla oblongata are distinct and continuing to form.
  • Neuron Migration

    Neuron Migration

    Neuron migration to their correct locations begins.
  • Structural Formation

    Structural Formation

    Regions start forming the complex brain structures.
  • Synaptic Pruning Begins

    Synaptic Pruning Begins

    Neurons are removed based on the functionality necessities of each region.
  • Myelination Beings

    Myelination Beings

    Brain begins to grow and fold.
  • Birth, Sensory

    Birth, Sensory

    Sensory regions of the brain are activated and synaptic pruning begins in these areas.
  • Socio-Emotional Increase

    Socio-Emotional Increase

    Areas responsible for social and emotional connections increase in size, density and complexity.
  • 50% of Adult Size

    50% of Adult Size

    At age one the brain reaches 50% of the adult size.
  • High Synapse Count

    High Synapse Count

    Each neuron has roughly 14,000 synapses.
  • Brain Reaches 75% of Adult Size

    Brain Reaches 75% of Adult Size

    At age 2, the brain has reached 75% of the final adult size.

  • Sources

    Sources:
    1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722610/
    2. https://www.semanticscholar.org/paper/Dishing-out-mini-brains%3A-Current-progress-and-in-Kelava-Lancaster/38ab8fee91e583b175e2fe13f99be7542d2f0b98
    3. https://www.researchgate.net/figure/Neural-plate-formation-and-neural-tube-closure-Transverse-sections-in-successive-stages_fig3_365344191