Psychopharmacology for The Puhn Midterm Exam
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Introduction
This comprehensive question bank is designed to prepare PMHNP students for the
NR 546 Advanced Pharmacology: Psychopharmacology Midterm Exam. The
questions cover foundational neuroanatomy, neurotransmitter systems,
pharmacokinetics, pharmacodynamics, and clinical applications of psychotropic
medications. Each question includes the correct answer with detailed rationale to
strengthen clinical reasoning and exam mastery. The content is organized to
facilitate systematic review across all major exam domains, including CYP450
drug interactions, receptor pharmacology, brain pathways, and medication
management for psychiatric disorders.
SECTION 1: NEUROANATOMY & BRAIN STRUCTURE
1. Which of the following best describes the primary composition of white
matter in the brain?
A. Neuron cell bodies and dendrites
B. Nerve fibers that connect neurons from different brain regions into functional
circuits
C. Cerebrospinal fluid and glial cells
D. Neurotransmitter storage vesicles
Answer: B
Rationale: White matter is primarily composed of myelinated axons that form
nerve fibers connecting different brain regions. These fibers allow communication
,between neurons located in separate areas of the brain and spinal cord, enabling
coordinated neural activity.
2. Which of the following structures are primarily found in grey matter of the
brain?
A. Myelinated axons
B. Nerve cells and dendrites
C. Peripheral nerve fibers
D. Cerebrospinal fluid channels
Answer: B
Rationale: Grey matter contains neuron cell bodies, dendrites, and synapses where
neural processing occurs. It is responsible for integrating and processing
information within the central nervous system, with areas rich in grey matter
including the cerebral cortex and subcortical nuclei.
3. Which component of a neuron is primarily responsible for transmitting
electrical impulses away from the cell body?
A. Dendrite
B. Axon
C. Soma
D. Synaptic cleft
Answer: B
Rationale: The axon is the elongated structure of a neuron that carries electrical
impulses away from the cell body toward other neurons or target tissues. It often
becomes myelinated to increase conduction speed and terminates in synaptic
terminals where neurotransmitters are released.
4. Dendrites are primarily responsible for which of the following functions in a
neuron?
,A. Conducting impulses away from the neuron
B. Receiving signals from other neurons
C. Producing myelin sheaths
D. Storing neurotransmitters
Answer: B
Rationale: Dendrites are branched projections that receive chemical signals from
other neurons. These signals are transmitted toward the neuron's cell body for
integration and processing. The large surface area of dendrites allows them to form
many synaptic connections.
5. The hippocampus is primarily involved in which of the following functions?
A. Motor coordination and balance
B. Anxiety responses, memory formation, and converting short-term to long-term
memory
C. Visual processing and object recognition
D. Regulation of hunger and body temperature
Answer: B
Rationale: The hippocampus is critical for declarative memory formation, spatial
navigation, and emotional regulation. It converts short-term to long-term memory
and is vulnerable to stress, explaining hippocampal volume reduction in depression
and PTSD.
6. Damage to the parietal lobe may result in which of the following?
A. Visual hallucinations
B. Astereognosis (inability to recognize objects by touch)
C. Personality changes and emotional decontrol
D. Impaired short-term memory conversion
Answer: B
Rationale: The parietal lobe processes sensory information including touch, pain,
temperature, and spatial relationships. Anterior parietal damage can cause
astereognosis—inability to recognize objects through touch alone.
, 7. A patient has difficulty recognizing faces despite intact visual acuity. Which
lobe is most likely affected?
A. Frontal lobe
B. Occipital lobe
C. Parietal lobe
D. Temporal lobe
Answer: B
Rationale: The occipital lobe contains primary and association visual cortex.
Bilateral damage to visual association areas can cause visual agnosia—inability to
recognize items by sight despite intact vision. The fusiform gyrus processes faces.
8. The structure that connects the two cerebral hemispheres and facilitates
interhemispheric communication is the:
A. Thalamus
B. Corpus callosum
C. Basal ganglia
D. Central sulcus
Answer: B
Rationale: The corpus callosum is the largest white matter tract, containing over
200 million axons connecting homologous areas of left and right hemispheres. It
integrates motor, sensory, and cognitive functions across hemispheres.
9. Which brain region is primarily responsible for executive function,
decision-making, and is implicated in the negative symptoms of
schizophrenia?
A. Amygdala
B. Hippocampus
C. Prefrontal cortex
D. Nucleus accumbens