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Week 7 Quiz

Nervous System

A synapse can occur only between an axon and: another axon, a cell body, and a dendrite
The difference between sodium and potassium in the generation of action potential is that: sodium causes depolarization of the cell membrane, and potassium causes repolarization of the cell membrane.
The magnitude of the action potential peaks when the sodium channels close. True
The sodium-potassium pump actively pumps three potassium ions out of the neuron and two sodium ions into the neuron. false
A membrane that exhibits a membrane potential is said to be polarized
The membrane potential maintained by a nonconducting neuron’s plasma membrane is called the _____ membrane potential. resting
The mechanisms that produce and maintain the resting membrane potential do so by producing a slight excess of positive ions on the outer surface of the plasma membrane.
A term commonly used as a synonym for action potential is nerve impulse.
Which chemicals allow neurons to communicate with one another? neurotransmitters
The autonomic nervous system is composed of The sympathetic and parasympathetic nervous system
A neuron that transmits a nerve impulse toward the central nervous system sensory neuron
Created by: reagynr
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