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Membrane Potential question: neuron function or location?

  1. Sep 19, 2008 #1
    1. The problem statement, all variables and given/known data

    Which of the following is NOT important in determining a neurons membrane potential:
    The function of the neuron or the location of the neuron?

    2. Relevant equations


    3. The attempt at a solution
    The function of a neuron is obviously the integration, summation, and propagation of signals/inofrmation. The location of a neuron will result in differing extracellular concentrations of ions, thus, should'nt a neuron's location help determine cell membrane potential?
  2. jcsd
  3. Sep 19, 2008 #2


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    2015 Award

    The extracellular concentrations of ions throughout the body is pretty constant. By function of the neuron, the question means type of neuron. For example, rod cells are a type of neuron with the function of sensing photons. Other type of neuron could be interneurons or motorneurons.
  4. Sep 19, 2008 #3
    Different types of neurons serve different purposes. Some neurons will have a longer/shorter relatively refractory period and a longer/shorter absolute refractory period, for example, which may alter a neural circuit greatly.
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