Question 1
Depressants achieve their effects, in part, by facilitating neural communication at synapses that use the neurotransmitter
◦ serotonin.
◦ dopamine.
◦ norepinephrine.
◦ GABA.
Question 2
Drugs such as barbiturates and alcohol are classified as depressants because they
◦ inhibit the transmission of nerve impulses in the central nervous system.
◦ lead to tolerance.
◦ bring about depression when they are not being used.
◦ are likely to cause a variety of mood disorders, especially depression.