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The Nerve Impulse

Matthew Cook, Kevin Draeger, Alexandra Fietsam, Rachel Reyes

  • The Nerve Impulse
  • Summary of Process
  • Video
  • Quiz
  • Glossary of Terms
    • Neuron
      • Axon
      • Dendrite
      • Soma
      • Myelin Sheaths
        • Nodes of Ranvier
        • Schwann Cells
        • Saltatory Conduction
      • Synaptic Cleft
    • Membrane Potential
      • Resting Membrane Potential
        • Sodium-Potassium Pump
      • Threshold Potential
      • Chemical Potential
    • Action Potential
      • Depolarization
        • Positive Feedback
        • Voltage-Gated Ion Channel
          • Voltage-Gated Sodium Channels
          • Voltage-Gated Potassium Channels
      • Repolarization
      • Hyperpolarization
      • Refractory Period
        • Relative Refractory Period
        • Absolute Refractory Period
      • Neurotransmitter
  • References

Membrane Potential

November 13, 2016December 8, 2016 Matthew

Membrane potential is developed when there is a difference in charge across a cell’s membrane. Negatively-charged organic ions like proteins are in higher concentrations in the cell, while positively-charged sodium is more concentrated outside of the cell. The resting membrane potential of the human neuron is -70 mV.

membrane-potential-ions

(“Membrane potential”, 2012)

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Dendrite
Resting Membrane Potential

7 thoughts on “Membrane Potential”

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  3. Pingback: Depolarization – The Nerve Impulse
  4. Pingback: Voltage-Gated Sodium Channels – The Nerve Impulse
  5. Pingback: Hyperpolarization – The Nerve Impulse
  6. Pingback: Voltage-Gated Potassium Channels – The Nerve Impulse
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