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Jacquelyn Jovez
SCI221-09 Human Physiology
| Question | Answer |
|---|---|
| The active transport mechanism in the plasma membrane that transports sodium and potassium ions in opposite directions and at different rates is the | sodium-potassium pump. |
| Which of the following antidepressants acts by blocking the action of monoamine oxidase (MAO)? | phenelzine |
| Neurotransmitters are released in a synapse and bind to: | receptors on the postsynaptic neuron. |
| Within the nervous system, coding for the strength of a stimulus is accomplished through: | the frequency of nerve impulses. |
| A term commonly used as a synonym for action potential is | nerve impulse. |
| When an impulse reaches a synapse: | chemical transmitters are released. |
| Severe depression can be caused by a deficit in certain brain synapses of: | amines. |
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | enkephalins. |
| The only ion(s) that can diffuse across a neuron’s membrane when the neuron is at rest is (are): | potassium. |
| When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |