QUESTION 1. Which of the following drugs is not a serotonin agonist?
A.MDMA
B.Nicotine
C.LSD
D.Tricyclic antidepressants
QUESTION 2. In a typical, drug-free brain, CB1 cannabinoid receptors
A.are activated by endogenous cannabinoids like anandamide.
B.do not exist.
C.are activated by THC.
D.serve no functional purpose.
QUESTION 3. What is the most common class of neurotransmitter in the central nervous system?
A.Neuropeptides
B.Amino Acids
C.Soluble gases
D.Endocannabinoids