A(n) _____ channel only opens or closes at specific membrane voltages.
A) nerve impulse
B) voltage-activated
C) absolutely refractory
D) relatively refractory
Correct Answer:
Verified
Q53: The repolarization of the neuronal membrane is
Q54: Sodium channels close when the membrane potential
Q55: _ channels are less sensitive than _
Q56: A cell cannot produce an action potential:
A)during
Q57: Tetraethylammonium (TEA):
A)blocks potassium channels.
B)blocks sodium channels.
C)blocks chlorine
Q59: An action potential is:
A)a large graded potential.
B)a
Q60: Depolarization is primarily linked with _, whereas
Q61: Nerve impulse describes:
A)an action potential crossing the
Q62: The speed at which nerve impulses travel
Q63: Which of the following is NOT one
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