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week 7 test review

QuestionAnswer
What mechanism quickly terminates the action of a neurotransmitter once it binds to its postsynaptic receptor? All of these are correct.
The magnitude of the action potential peaks when the sodium channels close. true
A synapse can occur only between an axon and: another axon
The sodium-potassium pump actively pumps three potassium ions out of the neuron and two sodium ions into the neuron. true
A term commonly used as a synonym for action potential is nerve impulse
In a myelinated neuron, the impulse can travel under the myelin between nodes of Ranvier. true
the speed of a nerve impulse depends on the neuron’s resting potential. false
A membrane that exhibits a membrane potential is said to be polarized.
Which chemicals allow neurons to communicate with one another? neurotransmitters
In a myelinated fiber, the action potential jumps from one node of Ranvier to the next. true
Created by: Mdozier
 

 



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