The speed at which nerve impulses travel down an axon are greatly increased by:
A) myelin.
B) refractory periods.
C) the length of the axon.
D) calcium channels.
Correct Answer:
Verified
Q57: Tetraethylammonium (TEA):
A)blocks potassium channels.
B)blocks sodium channels.
C)blocks chlorine
Q58: A(n) _ channel only opens or closes
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
Q63: Which of the following is NOT one
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Q65: Myelin is important for propagating action potential
Q66: Multiple sclerosis is thought to be:
A)an autoimmune
Q67: Autoimmune diseases are illnesses resulting from:
A)the inability
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