Dr Hunt Is Recording Activity at the Axon Hillock of a Neuron

question 43

Multiple Choice

 Dr. Hunt is recording activity at the axon hillock of a neuron. In spite of significant input, no action potential has been generated. What will Dr. Hunt probably conclude about the activity of this cell?

• A) The current from the EPSPs and IPSPs is not reaching the axon hillock properly.
• B) The current produced by IPSPs is insufficient for reaching threshold at the axon hillock.
• C) Approximately equal amounts of excitatory and inhibitory input are canceling each other out.
• D) Insufficient calcium has entered the axon hillock.

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