Ions enter and leave the membrane of a myelinated axon at the ...

[fagboi]

Ions enter and leave the membrane of a myelinated axon at the
 
  A) terminal buttons.
  B) axon hillock.
  C) nodes of Ranvier.
  D) segment of membrane under the Schwann cell wrapping.
  E) release zone.

Question 2

Sensory stimuli that vary in intensity are coded by variations in the ________ of a neuron.
 
  A) firing rate
  B) resting membrane potential
  C) speed of conduction of action potentials
  D) total amplitude of the action potential
  E) repolarization rate

[daiying98]

Answer to Question 1

Answer: C
Rationale: Ions enter and leave the membrane of a myelinated axon at the nodes of Ranvier.

Answer to Question 2

Answer: A
Rationale: Sensory stimuli that vary in intensity are coded by variations in the firing rate of a neuron.

[fagboi]

Excellent

[cam1229]

Thanks for the timely response, appreciate it