An action potential has just sped down one of your efferent ...

[Charlie]

An action potential has just sped down one of your efferent neurons to jerk your hand off the hot stove. Before an action potential will speed through this neuron again, the membrane of the neuron must become repolarized. The time between the action potentials is called the ____ period.
 
  a. refractory
  b. polarization
  c. self-propagating
  d. repolarization

Question 2

Multiple sclerosis is a disease in which the immune system mistakenly destroys
 
  a. synapses
  b. axons
  c. dendrites
  d. mitochondria

[wfdfwc23]

Answer to Question 1

ANSWER:
a

Answer to Question 2

ANSWER:
b

[Charlie]

Excellent

[jamesnevil303]

Thanks for the timely response, appreciate it