Psychopharmacology Questions with Detailed Rationales | 100% Verified | Pass
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Section A: Week 1 - Neuroanatomy, Neuron Function, & Basic
Neurobiology
Q1: A PMHNP is explaining the structure of a neuron to a patient who is starting a new
psychotropic medication. The patient asks where neurotransmitters are released to
communicate with the next cell. Which anatomical structure is the correct answer?
A. Dendrites
B. Cell body (soma)
C. Axon terminal [CORRECT]
D. Myelin sheath
Correct Answer: C
Rationale: Neurotransmitters are released from the axon terminal into the synaptic cleft.
Dendrites (A) receive signals; the soma (B) processes signals; the myelin sheath (D)
insulates the axon for faster conduction.
,Q2: A 72-year-old patient with Alzheimer's disease is experiencing progressive memory
loss. The PMHNP explains that which neurotransmitter system, primarily located in the
basal forebrain, is most significantly reduced in this condition?
A. Dopamine
B. Serotonin
C. Acetylcholine [CORRECT]
D. Glutamate
Correct Answer: C
Rationale: The cholinergic system, using acetylcholine, plays a major role in learning and
memory; reduced levels are linked to Alzheimer's disease. Dopamine (A) is linked to
movement and reward; serotonin (B) to mood; glutamate (D) is excitatory but not the
primary deficit in Alzheimer's.
Q3: A patient with Parkinson's disease is prescribed levodopa. The PMHNP explains
that this medication targets which brain region where dopamine depletion causes motor
symptoms?
A. Hippocampus
B. Amygdala
C. Substantia nigra and striatum (nigrostriatal region) [CORRECT]
D. Hypothalamus
,Correct Answer: C
Rationale: The substantia nigra and striatum (nigrostriatal pathway) are critical for
motor control; dopamine depletion here causes Parkinson's disease. The hippocampus
(A) is for memory; amygdala (B) for emotion; hypothalamus (D) for autonomic
regulation.
Q4: A patient with a traumatic brain injury to the frontal lobe demonstrates poor
judgment, impulsivity, and difficulty planning. Which function is most affected?
A. Visual processing
B. Executive functions, planning, and impulse control [CORRECT]
C. Auditory processing
D. Procedural memory consolidation
Correct Answer: B
Rationale: The frontal lobe governs executive functions, planning, decision-making, and
impulse control. Visual processing (A) is occipital; auditory (C) is temporal; procedural
memory (D) involves the basal ganglia and cerebellum.
Q5: A patient with bipolar disorder is taking a mood stabilizer. The PMHNP explains that
glial cells help maintain the neuronal environment. Which glial cell type produces myelin
in the central nervous system?
, A. Schwann cells
B. Astrocytes
C. Oligodendrocytes [CORRECT]
D. Microglia
Correct Answer: C
Rationale: Oligodendrocytes produce myelin in the CNS. Schwann cells (A) myelinate in
the PNS; astrocytes (B) support the blood-brain barrier and ion balance; microglia (D)
serve immune functions.
Q6: A patient asks how electrical signals travel through a neuron. The PMHNP explains
that signals are received by dendrites, travel to the soma, and then move down which
structure?
A. Synapse
B. Axon [CORRECT]
C. Terminal bouton
D. Node of Ranvier only
Correct Answer: B
Rationale: Electrical impulses travel from dendrites to the soma and then down the axon
to the terminal. The synapse (A) is the gap between neurons; the terminal bouton (C) is
the end of the axon; nodes of Ranvier (D) are gaps in myelin that facilitate conduction.