Brain Development of a Child Assignment

By mbestwina3245
  • Birth

    Birth

    Babies are born with 100 billion neurons connected by 50 trillion synapses. A neuron has an average of 2,500 synaptic connections at birth.
  • Myelination

    Myelination

    Cranial nerves are myelinated. Myelination is the process of forming a sheath around axons that insulates them and increases the speed of electrical signals transmitted between neurons
  • Brain Growth

    Brain Growth

    The brain reaches 25% of adult size.
  • Cerebellum and Prefrontal Cortex Growth

    Cerebellum and Prefrontal Cortex Growth

    The cerebellum and prefrontal cortex continue making new neurons.
  • Reduced Synaptic Density

    Reduced Synaptic Density

    Synaptic density is reduced to half by age 2. Synaptic density is a measure of the number of synapses in a given area of the brain and is an indicator of the central nervous system's development and function. Synapses are the sites where neurons communicate with each other and consume most of the brain's metabolic energy.
  • Myelination Continues

    Myelination Continues

    Myelination continues and proceeds from the back to the front of the brain and from the center to the sides.
  • More Brain Growth

    More Brain Growth

    The brain reaches 50% of adult size at age 1.