NIDA's 2011 National Survey on Drug Use and Health revealed that about __________ of Americans have used marijuana at least once
a. 15%
b. 40%
c. 50%
d. 75%
b
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The case of Phineas Gage illustrated that the ______ part(s) of the brain was/were related to processing emotions and making rational decisions.
A. frontal lobes B. parietal lobes C. temporal lobes D. occipital lobe
Fernado has developed a powerful craving for the taste of salt. The doctor finds that he has a deficiency in
a. thyroxin. b. epinephrine. c. corticoids. d. norepinephrine.
Nettie is in the laboratory working with cultured neurons. She wants to record the voltage following the opening of the sodium channels. What does she need to do to get the sodium channels to open?
A. Add a solution that will result in depolarizing the membrane. B. Add a solution that will result in hyperpolarizing the membrane. C. Increase the amount of sodium outside of the neuron. D. Produce an action potential and get to the refractory periods.
The needs for safety are activated in infants and children when:
a. they are threatened by loud noises b. they live in a stable and familiar environment c. they are provided with sufficient nourishment and care d. their parents reinforce them in a systematic manner