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7-13
| Question | Answer |
|---|---|
| The neurotransmitter(s) that inhibit(s) the conduction of pain impulses is(are): | enkephalins. |
| Which of the following antidepressants acts by blocking the action of monoamine oxidase (MAO)? | Phenelzine |
| A term commonly used as a synonym for action potential is | nerve impulse. |
| When current leaps across an insulating myelin sheath from node to node, the type of impulse conduction is called: | saltatory conduction. |
| There are two types of synapses—the electrical synapse and the __________ synapse. | chemical |
| Which is true of a neuron with a resting potential? | The sodium pump has moved Na+ to the outside of the plasma membrane. |
| Stimulus-gated channels open in response to: | sensory stimuli. |
| The receptors responsible for sensing crude and persistent touch are the: | Ruffini corpuscles. |
| Clearness or sharpness of visual perception is known as: | visual acuity |
| All of the following are true statements except: | aspirin produces some of its effects by increasing PGE synthesis. |
| One of the few hormones that functions on a positive-feedback loop is: | oxytocin. |
| Which of the following is true about pain receptors? | Alpha fibers are associated with sharp, localized pain. |
| Dynamic equilibrium depends on the functioning of the | crista ampullaris. |
| Which of the following is not a characteristic of the endocrine system? | Chemical messenger travels a short distance. |
| In comparison with the nervous system, the regulatory effects of the endocrine system are: | slow to appear but long-lasting. |
| The last step in the nonsteroid hormone mechanism of action is: | protein kinases activate other enzymes. |
| The clear and potassium-rich fluid that fills the labyrinth is | endolymph. |
| Sensory impulses ending in what part of the CNS trigger imprecise or “crude” sensation awareness? | Thalamus |