Voltage-gated sodium channels at a neuron's initial segment are triggered to open when the membrane becomes more positive.
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Q98: A graded potential is one that
A) is
Q99: When a neurotransmitter causes the opening of
Q100: If there were no sodium leak channels,
Q101: Somatic motor neuron axons fall into the
Q102: In a myelinated axon, the greatest concentration
Q104: After an impulse, the _ refractory period
Q105: The conductive segment of a neuron is
Q106: Which occurs first?
A) Absolute refractory period
B) Relative
Q107: The slowest category of nerve fibers are
Q108: Neurotransmitter is released from the synaptic knob
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