In the brain, myelination ____
a. deactivates neurotransmitters that have not been used
b. reabsorbs neurotransmitters once the axon has released them.
c. increases the efficiency of signal transmission
d. helps relay messages across the synapse
C
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Nonsmokers who breathe ________________ smoke are at considerably higher risk for smoking-related diseases; each year, about 49,000 individuals die from exposure to it
Fill in the blank(s) with correct word
Philip was bitten by a black widow spider. It is possible that if exposed to enough, the venom will
A. cause paralysis by preventing GABA release. B. cause paralysis by blocking postsynaptic receptors. C. interfere with glutamate synthesis. D. produce convulsions by overstimulating ACh release.
Hysteria, a now-defunct diagnosis that interested psychologists and psychiatrists in the 19th century, would be known as what today?
A. Agoraphobia B. Body dysmorphia disorder C. Somatic symptom disorder D. Obsessive-compulsive disorder
The most commonly used illegal drug in the United States is
A) ?heroin. B) ?cocaine. C) ?marijuana. D) ?anabolic steroids.