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Physiology

Weeks 7-13

QuestionAnswer
Dopamine, epinephrine, and norepinephrine are classified as: catecholamines.
Which of the following statements about amino acid neurotransmitters is incorrect? They are all inhibitory neurotransmitters.
The fastest nerve fibers in the body can conduct an impulse that is how much faster than the slowest fibers in the body? Almost 300 times faster
Which is true of a neuron with a resting potential? The sodium pump has moved Na+ to the outside of the plasma membrane.
No impulse can be sent through a neuron: during the absolute refractory period.
During a relative refractory period: the action potential can be initiated with a strong stimulus.
The first event to occur when an adequate stimulus is applied to a neuron is: some of the sodium channels at the point of stimulation open.
Excitatory neurotransmitters are most likely to initiate an action potential.
The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): enkephalins.
Compared with the outside of the neuron, the inside has a(n) ____ charge. negative
Created by: K.Curtis
 

 



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