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Anatomy

Midterm

QuestionAnswer
Neurons are the only living cells that maintain a difference in the concentration of ions across their membranes. False
What mechanism quickly terminates the action of a neurotransmitter once it binds to its postsynaptic receptor?  Neurotransmitter molecules are transported into nearby glial cells.  Neurotransmitter molecules are transported back into synaptic knobs.  N All of these are correct.
A synapse can occur only between an axon and:   a dendrite. any of the above.
Which membrane receptor acts to directly change ion permeability when stimulated?   Gated-channel receptor
The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the   ion pump. sodium-potassium pump.
The speed of a nerve impulse depends on the neuron’s resting potential. False
Created by: Navneetkur
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