The ability of a postsynaptic neuron to generate an action potential (a signal) depends on information received from surrounding presynaptic neurons. These connections can be either inhibitory or excitatory. Which action is associated with an excitatory postsynaptic potential (EPSP)?

+1 vote

 

  

hyperpolarization in response to an outflow of potassium ions from the postsynaptic neuron

  

depolarization in response to an outflow of sodium ions from the postsynaptic neuron

  

simultaneous inflow of sodium ions to and outflow of potassium ions from the postsynaptic neuron

  

depolarization in response to an inflow of sodium ions into the postsynaptic neuron

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

+1 vote

 

depolarization in response to an inflow of sodium ions into the postsynaptic neuron

 

answered Dec 31, 2012 by Panda ~Expert~ (1,557 points)

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