The idea that pain signals must pass through a type of "doorway" in the spinal cord is referred to as the __________
a) opponent-process theory of pain.
b) revolving door theory of pain.
c) substance P theory of pain.
d) gate-control theory of pain.
d
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Which of the following is true regarding circumcision and AIDS?
A) In a study from Africa, circumcised men were slightly more likely to become infected with HIV than uncircumcised men. B) In a study from Africa, uncircumcised men were more likely to become infected with HIV than circumcised men. C) Across studies, circumcision is not related to the risk of contracting HIV. D) Circumcision relates to risk of HIV infection in Africa only. They are not related in other areas of the world.
Dr. Athorp has just discovered a new drug that mimics the effects of GABA. It is likely that this new drug will produce side effects such as
a. general stimulation within the body and an increase in heart rate. b. anxiety reduction and general relaxation. c. a reduction in pain and a sense of euphoria. d. hallucinations and disrupted sleep patterns.