Practice Questions & Detailed Answers | ANCC/AANP Board
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SECTION I: NEUROBIOLOGY & NEUROTRANSMITTERS (Questions 1–35)
1. Norepinephrine (NE) is primarily synthesized in which brain structure?
A) Raphe nuclei
B) Locus coeruleus
C) Substantia nigra
D) Nucleus basalis of Meynert
Correct Answer: B
Rationale: Norepinephrine is synthesized in the locus coeruleus, located in the pons. It is the primary
source of NE in the central nervous system and is crucial for arousal, attention, and the stress response.
The raphe nuclei synthesize serotonin, the substantia nigra produces dopamine, and the nucleus basalis
of Meynert is the primary source of acetylcholine.
2. Serotonin (5HT) is primarily produced in which brain structure?
A) Locus coeruleus
B) Nucleus basalis
C) Raphe nuclei
D) Substantia nigra
,Correct Answer: C
Rationale: Serotonin is synthesized in the raphe nuclei located in the brainstem. These nuclei project
widely throughout the CNS and regulate mood, sleep, appetite, and impulse control. The locus coeruleus
produces norepinephrine, the substantia nigra produces dopamine, and the nucleus basalis is associated
with acetylcholine production.
3. Dopamine is primarily produced in which brain structures? (Select all that apply)
A) Locus coeruleus
B) Substantia nigra
C) Ventral tegmental area (VTA)
D) Raphe nuclei
Correct Answer: B, C
Rationale: Dopamine is produced in the substantia nigra (involved in motor control—degenerates in
Parkinson's disease) and the ventral tegmental area (involved in reward, motivation, and addiction). The
mesolimbic and mesocortical pathways originate from the VTA.
4. Extrapyramidal symptoms (EPS) originate from dopamine blockade in which pathway?
A) Mesolimbic pathway
B) Mesocortical pathway
C) Nigrostriatal pathway
D) Tuberoinfundibular pathway
,Correct Answer: C
Rationale: EPS are caused by dopamine blockade in the nigrostriatal pathway. This pathway is part of
the basal ganglia motor circuit. Antipsychotic medications block D2 receptors in this pathway, leading to
parkinsonism, dystonia, akathisia, and tardive dyskinesia.
5. The primary excitatory neurotransmitter in the central nervous system is:
A) GABA
B) Glutamate
C) Serotonin
D) Dopamine
Correct Answer: B
Rationale: Glutamate is the primary excitatory neurotransmitter in the CNS. It is involved in cognition,
learning, and memory. Excess glutamate can cause excitotoxicity, which is implicated in
neurodegenerative disorders.
6. The primary inhibitory neurotransmitter in the central nervous system is:
A) Glutamate
B) Norepinephrine
C) GABA
D) Acetylcholine
, Correct Answer: C
Rationale: GABA (gammaaminobutyric acid) is the primary inhibitory neurotransmitter in the CNS. It
reduces neuronal excitability and is the target of benzodiazepines and barbiturates.
7. Which brain structure is responsible for the regulation of emotion, memory, and motivated behavior?
A) Thalamus
B) Hypothalamus
C) Limbic system
D) Brainstem
Correct Answer: C
Rationale: The limbic system is a set of interconnected structures that regulate emotion, memory, and
motivation. Key components include the amygdala (emotion and fear), hippocampus (memory
formation), and cingulate gyrus (emotional processing).
8. Acetylcholine is primarily produced in which brain structure?
A) Locus coeruleus
B) Nucleus basalis of Meynert
C) Raphe nuclei
D) Substantia nigra