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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Definitions:

Gratuitous Agent

An individual who acts on behalf of another without receiving any compensation or benefit, motivated by voluntary intent or relationship.

Duty of Loyalty

An obligation of an individual, such as a director of a company, to act in the best interests of the company or another person, without personal conflict.

Fiduciary

A person or organization that acts on behalf of another person or persons, putting their clients' interest ahead of their own, with a duty to preserve good faith and trust.

Fiduciary Obligation

A legal or ethical relationship of trust where one party, known as a fiduciary, acts in the best interests of another party, such as a trustee for a beneficiary.