Otto Loewi collected the fluid around a frog's heart and injected it onto another frog's heart. What did he demonstrate?
a. Some synapses operate by releasing chemicals
b. Synapses control complex emotional responses.
c. Synapses can be either excitatory or inhibitory.
d. Synapses in the periphery use the same neurotransmitters that the brain uses.
a
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The proportion of patients taking antipsychotic medication who eventually develop tardive dyskinesia is closest to:
A) 1 percent. B) 10 percent. C) 20 percent. D) 50 percent.
As the former captain of the football team, John organized a game for his 25th high-school class reunion. Afterward, all the players complained that they were aching, and that they were much stronger and faster in high school
What is the nature of their biosocial changes? Their fibers for Type I muscles have been reduced by about 25 percent since high school. Their fibers for Type II muscles have been reduced by about 50 percent since high school. Their back muscles, connective tissues, and bones have lost strength. Their lung capacity is reduced.