ANATOMY OF THE BRAIN

  • Weights about 3 pounds (approximately 1.3 to 1.4 kg).
  • Neurons are the basic unit in the nervous system.
  • Neurons communicate within the body by transmitting electrochemical signals.
  • The brain is composed of approximately 100 billion neurons at birth, yet remarkably, they are not fully connected in networks.
  • Connections among neurons are formed as the growing child experiences and forms attachment with the surrounding world.
  • The brain is involved in the control of higher mental functions such as consciousness, memory, planning, and voluntary action. It also controls lower body functions such as the maintenance of respiration, heart rate, blood pressure, and digestion.

NEUROPLASTICITY

The capacity of neurons and neural networks in the brain to change their connections and behavior in response to new information,
sensory stimulation, development, damage, or dysfunction (Encyclopedia Britannica, 2018).

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HOW THE BRAIN CHANGES

NEUROGENESIS

NEW SYNAPSES

STRENGTHENED SYNAPSES

WEAKENED SYNAPSES