Which statement is true about the absolute refractory period?
A) It ensures that action potentials move in only one direction along a nerve fiber.
B) It is the period when the membrane can undergo another action potential, but only if the stimulus is strong enough.
C) It is the time during an action potential when voltage-gated Na+ channels are in their "closed but capable of opening" conformation.
D) places a lower limit on the frequency with which a neuron can conduct action potentials.
E) All of the above statements are true.
Correct Answer:
Verified
Q16: A threshold potential is
A)the potential achieved when
Q17: Which statement is not accurate about the
Q18: Opening either a chemically-gated Na⁺ channel or
Q19: The negative charge established along the cytosolic
Q20: Binding of an excitatory neurotransmitter to a
Q22: Which statement is incorrect?
A)A local current can
Q23: When the membrane potential is +15 mV,
Q24: The trigger zone of a neuron
A)is located
Q25: An IPSP is
A)produced by increased permeability to
Q26: The period following an action potential during
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