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Kaetlynrenae Kaetlynrenae
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6 years ago
Which of the following occurs first during an action potential?
  a. Many sodium ions flow into the neuron.
  b. Voltage-gated sodium channels open.
  c. A local disturbance triggers the resting voltage to exceed the threshold level.
  d. The interior of the neuron becomes positive.
  e. The interior of the neuron becomes negative.

Question 2

Disturbances in sensory neurons will result in an action potential if the
  a. stimulus is graded.
  b. stimulus remains local.
  c. graded stimulus reaches a trigger zone.
  d. localized stimuli do not spread far.
  e. stimuli become downgraded to localized ones.
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merana.potrosmerana.potros
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