When Chandra smelled some sour milk, the message to wrinkle her nose and grimace was carried from her central nervous system to her face along:

Belief in the spiritual aspects of Alcoholics Anonymous has been found to

a) be important for success in remaining abstinent. b) lead to a fatalism that actually interferes with combating alcohol dependence. c) play an insignificant role in the success of the program. d) no research has been done on this aspect of the program.

Dr. Johnson is screening for more effective treatments for bipolar disorder. To see if these compounds work in a similar manner to the most commonly prescribed treatment, she treats rats with the derivatives for several weeks, and then measures ____

a. ?cerebral gray matter volume b. ?the number of proliferating glia in the brain c. ?cerebral hemisphere cross-talk d. ?the level of myelination in the brain