FOR THE PMHNP Week 8 Final Exam –
Comprehensive 100-Question Practice Exam
Complete with Verified Answers & Detailed
Rationales Updated for 2026 | Chamberlain University
| A+ Graded
Question 1
Which brain region is primarily responsible for the formation of new long-term
memories?
A) Amygdala
B) Hippocampus
C) Thalamus
D) Basal ganglia
Correct Answer: B. Hippocampus
Rationale: The hippocampus plays a central role in the consolidation of new long-
term memories (declarative memory). While the amygdala modulates emotional
memory, it is not the primary structure for declarative memory formation. The
thalamus serves as a sensory relay station, and the basal ganglia are involved in
motor control and procedural learning.
Question 2
Which lobe of the cerebral cortex is primarily responsible for processing visual
information?
A) Frontal lobe
B) Parietal lobe
C) Temporal lobe
D) Occipital lobe
Correct Answer: D. Occipital lobe
,Rationale: The occipital lobe is the primary visual processing center of the brain.
The frontal lobe governs executive function and motor output, the parietal lobe
integrates sensory information, and the temporal lobe is associated with auditory
processing and language comprehension.
Question 3
Which structure forms the boundary between the frontal lobe and the parietal lobe?
A) Lateral sulcus
B) Longitudinal fissure
C) Central sulcus
D) Calcarine sulcus
Correct Answer: C. Central sulcus
Rationale: The central sulcus (fissure of Rolando) separates the frontal lobe from
the parietal lobe. The lateral sulcus separates the temporal lobe from the frontal
and parietal lobes. The longitudinal fissure separates the two cerebral hemispheres.
Question 4
Which of the following best explains the monoamine hypothesis of depression?
A) Depression is caused by a deficiency of monoamine neurotransmission
B) Depression is a result of excess monoamine neurotransmission
C) Depression is caused by genetic factors only
D) Depression is a result of dopamine excess
Correct Answer: A. Depression is caused by a deficiency of monoamine
neurotransmission
Rationale: The monoamine hypothesis of depression proposes that depression
occurs as a result of a deficiency of one or all three monoamine neurotransmitters:
serotonin, norepinephrine, and dopamine. Mania is thought to occur from an
excess of these neurotransmitters.
Question 5
Nicotine's reinforcing effects are primarily mediated through which receptors?
,A) Alpha 4 beta 2 postsynaptic receptors in the ventral tegmental area
B) Alpha 7 postsynaptic receptors in the prefrontal cortex
C) Both A and B
D) Neither A nor B
Correct Answer: A. Alpha 4 beta 2 postsynaptic receptors in the ventral
tegmental area
Rationale: Nicotine's reinforcing effects are primarily mediated through alpha 4
beta 2 nicotinic acetylcholine receptors in the ventral tegmental area (VTA). These
receptors are responsible for dopamine release in the nucleus accumbens, which
underlies the addictive properties of nicotine.
Question 6
Which of the following is a major dopamine pathway and is associated with the
extrapyramidal side effects of antipsychotics?
A) Mesolimbic pathway
B) Mesocortical pathway
C) Nigrostriatal pathway
D) Tuberoinfundibular pathway
Correct Answer: C. Nigrostriatal pathway
Rationale: The nigrostriatal pathway connects the substantia nigra to the striatum
and is involved in motor control. Blockade of dopamine D2 receptors in this
pathway by antipsychotics leads to extrapyramidal side effects (EPS) including
parkinsonism, dystonia, and tardive dyskinesia.
Question 7
The mesolimbic dopamine pathway is associated with which function?
A) Motor control
B) Reward and reinforcement
C) Cognition and executive function
D) Prolactin regulation
Correct Answer: B. Reward and reinforcement
, Rationale: The mesolimbic pathway projects from the VTA to the nucleus
accumbens and is involved in reward, motivation, and reinforcement.
Hyperactivity in this pathway is implicated in positive symptoms of schizophrenia,
while antipsychotics block D2 receptors in this pathway to reduce symptoms.
Question 8
Which neurotransmitter is the primary inhibitory neurotransmitter in the central
nervous system?
A) Glutamate
B) Dopamine
C) GABA
D) Acetylcholine
Correct Answer: C. GABA
Rationale: GABA (gamma-aminobutyric acid) is the primary inhibitory
neurotransmitter in the CNS. It works by opening chloride channels,
hyperpolarizing neurons, and reducing neuronal excitability. Glutamate is the
primary excitatory neurotransmitter.
Question 9
The tuberoinfundibular dopamine pathway regulates which physiological process?
A) Motor control
B) Prolactin secretion
C) Cognition
D) Reward
Correct Answer: B. Prolactin secretion
Rationale: The tuberoinfundibular pathway projects from the hypothalamus to the
pituitary gland and regulates prolactin secretion. Dopamine in this pathway inhibits
prolactin release. Antipsychotic blockade of D2 receptors in this pathway can lead
to hyperprolactinemia.