Neurons are the most fundamental signaling units of the human nervous system. They gather information about the brain’s internal state and the body’s external environment, analyze the data, and respond by coordinating appropriate actions. Typically, neurons consists of:

  • Cell body or soma (metabolic center and primary site of neuronal protein synthesis)
  • Dendrites (the primary conduits for receiving information from other neurons)
  • Axons (may be more than 3 feet long and emit neurotransmitters that transport messages from one cell to another)
  • Presynaptic terminals (numerous delicate swellings at the end of an axon that end at a synapse)

(Schramm, Derek D., PhD. The Creative Brain. p 2-3. CA: Institute for Natural Resources, Health Update. 2007.)

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