Quiz 3

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  1. al  cell membrane demonstrate threshold potential
    false
  2. generally speaking, all membranes demonstrate a Na/K pump activity
    true
  3. generally speaking, cell membranes demonstrate a resting membrane potential
    true
  4. the amplitude of the action spike is a function of the concentration gradient of Na+ across the cell membrane.
    true
  5. only excitable cell membranes demonstrate an action potential.
    true
  6. the larger diameter of a neuronal axon implies a faster speed of conduction.
    true
  7. a myelinated neuron can conduct 50x faster than the fastest unmyelinated neuron
    true
  8. tetraethyl ammonium is a Na+ channel poison.
    false
  9. a local anesthetic of often one that reversibly blocks the Na+vgc
    true
  10. generally speaking, Na+vgc are fast to open and fast to close when compared with K+vgc that open and close slowly
    true
  11. when a membrane is in state of absolute refractory, only the strongest of the stimuli (high amplitude, plus high duration) can cause an action potential generation.
    false
  12. a threshold, all K+vgc are open.
    false

Card Set Information

Author:
sh3ilamarie
ID:
316009
Filename:
Quiz 3
Updated:
2016-02-17 02:52:39
Tags:
physiology
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Description:
True or False.
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