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What ions are involved in the action potentials in neurons? Are they entering or leaving the...

What ions are involved in the action potentials in neurons? Are they entering or leaving the cell? What is their purpose?

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Answer #1
  • Ions involved in the action potentials in neurons are cation (sodium and potassium cations).
  • sodium ion enter the cell and potassium ion leaves the cell.
  • Na+, the sodium ion moves into neuron during the process of action potential.
  • the process of  action potential occurs when a neuron sends information to down axon and away from the cell body. Action potentials are caused due to different ions cross the neuron membrane.
  • A neuron that emits an action potential, or nerve impulse, is called as "fire".Action potentials which are generated by special types of voltage-gated ion channels in a cell's plasma membrane.
  • action potential is usually divided into five parts: the rising phase, the peak phase, the falling phase, the undershoot phase, and the refractory period.
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