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Stack #4549253

QuestionAnswer
What is the membrane potential of a nonconducting neuron called? Resting membrane potential at 70 MV
What is the most permeable ion across a neural membrane at rest? Potassium
What opens the voltage gated and a channels during an action potential? The threshold potential 55 Mv
At what point can no new action potential be generated? Absolute refractory.
What pumps ions against their concentration gradient and restores resting potential? Sodium potassium pump
In the postsynaptic neuron, what does excitatory neurotransmitters do? They cause depolarization and initiate action potential
When action potential jump from note to node what type of conduction occurs? Salatory conduction, (jumping)
What is the synaptic cleft? It is a tiny gap between neurons at the synapse.
Chemical molecules allow neurons to communicate across the synapses? Neurotransmitters
What neurotransmitter class includes dopamine, norepinephrine, and epinephrine? Catecholamines (amine neurotransmitter)
Created by: Savannah Bullard
 



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