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Study Stack 1
Physiology
| Question | Answer |
|---|---|
| Which is true of a neuron with a resting potential? | The sodium pump has moved Na+ to the outside of the plasma membrane. |
| The fastest nerve fibers in the body can conduct impulses up to approximately _____ meters per second. | 130 |
| Which of the following is not used by the body as a neurotransmitter? | Carbon monoxide, Nitric oxide, Acetylcholine |
| Stimulus-gated channels open in response to: | sensory stimuli and the influx of potassium |
| Severe depression can be caused by a deficit in certain brain synapses of: | amines |
| For a neurotransmitter to produce an inhibitory postsynaptic potential, which of the following channels must open? | Potassium and/or chloride channels |
| The only ion(s) that can diffuse across a neuron’s membrane when the neuron is at rest is (are): | potassium |
| 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. |
| Compared with the outside of the neuron, the inside has a(n) ____ charge. | negative |
| Which of the following is true of spatial summation? | Neurotransmitters released simultaneously from several presynaptic knobs converge on one postsynaptic neuron. |
Created by:
ingrid_borgesenn
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