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Nervous system, Peripheral Nervous System, Brain, Diff between…

- - - - Sensory (afferent)
        Conduct action potentials toward the CNS. Sensory neurons detect the internal and external environments (such as from the skin and viscera) and facilitate motor coordination (such as in joints and muscles).
        
        Motor (efferent)
        conduct action potentials away from the CNS toward muscles or glands
        
        Interneuron
        Conduct action potentials within the CNS from one neuron to another, primarily between sensory and motor neurons.
    - - Chemical synapses release and receive chemical neurotransmitters.
        Information is transferred across chemical synapses beginning when an action potential arrives at an axon terminal
      - Electrical synapses are less common than chemical synapses. Electrically coupled neurons allow for rapid transmission across electrical synapses.
      - The actions of neurotransmitters include effects on sleeping, anger, thinking, hunger, movement, memory, and many other functions.
        
        Synaptic transmission is commonly affected by either the enhancing or inhibiting effects of neurotransmitters, their destruction, or the blocking of receptor binding.
        
        Anything that reduces neurotransmitter activity may slow the brain’s ability to communicate with the rest of the body.
  - - - Produce myelin and provide electrical insulation
    - - Provide structural & metabolic support, participate in repair
    - - Assist in production and movement of cerebral spinal fluid
    - - Participate in defense and immune response
    - - Produce myelin & provide electrical insulation
    - - Provide structural & metabolic support for cell bodies of neurons