1. Which of the following neurotransmitters is primarily
associated with mood regulation and is often targeted by
antidepressant medications?
- A. Dopamine
- B. Serotonin
- C. Acetylcholine
- D. GABA
, - ANS: B. Serotonin
- Rationale: Serotonin is a key neurotransmitter involved in
mood regulation, and many antidepressants work by increasing
serotonin levels in the brain.
2. What is the primary mechanism of action of selective
serotonin reuptake inhibitors (SSRIs)?
- A. Inhibiting the reuptake of dopamine
- B. Blocking the reuptake of serotonin
- C. Enhancing the release of norepinephrine
- D. Inhibiting the breakdown of acetylcholine
- ANS: B. Blocking the reuptake of serotonin
- Rationale: SSRIs block the reuptake of serotonin into
presynaptic neurons, increasing its availability in the synaptic
cleft.
3. Which of the following best describes the concept of
'pharmacokinetics'?
- A. The study of drug effects on the body
- B. The study of the body's effects on a drug
- C. The study of drug interactions
- D. The study of drug toxicity
, - ANS: B. The study of the body's effects on a drug
- Rationale: Pharmacokinetics involves the study of how the
body absorbs, distributes, metabolizes, and excretes a drug.
Fill-in-the-Blank Questions
4. The process by which a drug is metabolized and eliminated
from the body is known as __________.
- ANS: Excretion
- Rationale: Excretion is the process by which the body
eliminates drugs and their metabolites, primarily through the
kidneys.
5. __________ is a class of medications commonly used to treat
anxiety disorders by enhancing the effect of the neurotransmitter
GABA.
- ANS: Benzodiazepines
- Rationale: Benzodiazepines enhance the effect of GABA,
leading to increased inhibitory effects and reduced anxiety.
6. The __________ effect occurs when a patient experiences
therapeutic benefits from an inactive substance due to their belief
in its efficacy.
- ANS: Placebo
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