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Stack #4546353
| Question | Answer |
|---|---|
| Which of the following antidepressants acts by blocking the action of monoamine oxidase (MAO)? | phenelzine |
| During a relative refractory period: the action potential cannot be initiated. a resting potential exists. the cell membrane is impermeable to Na+ and K+. the action potential can be initiated with a strong stimulus. | the action potential can be initiated with a strong stimulus. |
| A term commonly used as a synonym for action potential is | nerve impulse |
| No impulse can be sent through a neuron: | during the absolute refractory period |
| Excitatory neurotransmitters are most likely to: increase the speed of impulse conduction. make the cell membrane impermeable. initiate an action potential. make the resting potential more negative. | initiate an action potential. |
| The brief period during which a local area of an axon's membrane resists re-stimulation is called the __________ period. | refractor |
| Within the nervous system, coding for the strength of a stimulus is accomplished through: | the frequency of nerve impulses. |
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | enkephalins |
| When an impulse reaches a synapse: two nerve fibers come in direct contact. impulses will pass in either direction. an electrical spark will jump the gap. chemical transmitters are released. | chemical transmitters are released. |
| Acetylcholine is in the same class of neurotransmitters as: serotonin. histamine. dopamine. none of the above. | none of the above |
Created by:
harkaran