NR 546 Midterm Exam 2026-190
QUESTIONS AND ANSWERS ALREADY
GRADED A+. 100% Verified Solutions
| Updated Per Latest Guidelines |
Graded A+,
1. A patient recovering from a stroke has trouble with speech
comprehension. Which part of the brain has been affected?
A) Broca's area
B) Basal ganglia
C) Limbic system
D) Wernicke's area
Correct Answer: D
Rationale: Wernicke's area, located in the superior temporal gyrus, is
responsible for language comprehension. Damage results in receptive
aphasia (Wernicke's aphasia), characterized by fluent but meaningless
speech and difficulty understanding language. Broca's area (frontal lobe)
is responsible for speech production.
, 2. Damage to the anterior portion of which lobe may cause astereognosis
(loss of ability to recognize objects via touch)?
A) Frontal lobe
B) Temporal lobe
C) Parietal lobe
D) Occipital lobe
Correct Answer: C
Rationale: The parietal lobe processes somatosensory information,
including touch, pressure, temperature, and pain. Damage to the anterior
parietal lobe (postcentral gyrus) disrupts the primary somatosensory
cortex, resulting in the inability to recognize objects through tactile
manipulation despite intact sensory pathways.
3. The limbic system is primarily associated with which functions?
A) Motor control and coordination
B) Emotion and learning
, C) Visual processing
D) Language production
Correct Answer: B
Rationale: The limbic system includes structures such as the hippocampus,
amygdala, hypothalamus, and cingulate gyrus. It plays a central role in
emotional processing, memory formation, motivation, and the regulation
of autonomic and endocrine responses.
4. Which brain structure is most associated with long-term memory
formation?
A) Amygdala
B) Hypothalamus
C) Hippocampus
D) Thalamus
Correct Answer: C
Rationale: The hippocampus is essential for consolidating short-term
memories into long-term declarative memories. Damage to the
hippocampus results in anterograde amnesia (inability to form new
memories).
, 5. Which brain structure is involved in voluntary motor movements and
is affected in Parkinson's disease?
A) Basal ganglia
B) Prefrontal cortex
C) Amygdala
D) Limbic system
Correct Answer: A
Rationale: The basal ganglia (caudate, putamen, globus pallidus,
substantia nigra) initiate and modulate voluntary movement via cortico-
striatal-thalamo-cortical loops. Parkinson's disease involves degeneration
of nigrostriatal dopamine neurons in the basal ganglia.
6. Neurogenesis has recently been discovered to occur in adults in which
locations?
A) Only in the dentate gyrus of the hippocampus
B) In the dentate gyrus of the hippocampus and in the olfactory bulb
QUESTIONS AND ANSWERS ALREADY
GRADED A+. 100% Verified Solutions
| Updated Per Latest Guidelines |
Graded A+,
1. A patient recovering from a stroke has trouble with speech
comprehension. Which part of the brain has been affected?
A) Broca's area
B) Basal ganglia
C) Limbic system
D) Wernicke's area
Correct Answer: D
Rationale: Wernicke's area, located in the superior temporal gyrus, is
responsible for language comprehension. Damage results in receptive
aphasia (Wernicke's aphasia), characterized by fluent but meaningless
speech and difficulty understanding language. Broca's area (frontal lobe)
is responsible for speech production.
, 2. Damage to the anterior portion of which lobe may cause astereognosis
(loss of ability to recognize objects via touch)?
A) Frontal lobe
B) Temporal lobe
C) Parietal lobe
D) Occipital lobe
Correct Answer: C
Rationale: The parietal lobe processes somatosensory information,
including touch, pressure, temperature, and pain. Damage to the anterior
parietal lobe (postcentral gyrus) disrupts the primary somatosensory
cortex, resulting in the inability to recognize objects through tactile
manipulation despite intact sensory pathways.
3. The limbic system is primarily associated with which functions?
A) Motor control and coordination
B) Emotion and learning
, C) Visual processing
D) Language production
Correct Answer: B
Rationale: The limbic system includes structures such as the hippocampus,
amygdala, hypothalamus, and cingulate gyrus. It plays a central role in
emotional processing, memory formation, motivation, and the regulation
of autonomic and endocrine responses.
4. Which brain structure is most associated with long-term memory
formation?
A) Amygdala
B) Hypothalamus
C) Hippocampus
D) Thalamus
Correct Answer: C
Rationale: The hippocampus is essential for consolidating short-term
memories into long-term declarative memories. Damage to the
hippocampus results in anterograde amnesia (inability to form new
memories).
, 5. Which brain structure is involved in voluntary motor movements and
is affected in Parkinson's disease?
A) Basal ganglia
B) Prefrontal cortex
C) Amygdala
D) Limbic system
Correct Answer: A
Rationale: The basal ganglia (caudate, putamen, globus pallidus,
substantia nigra) initiate and modulate voluntary movement via cortico-
striatal-thalamo-cortical loops. Parkinson's disease involves degeneration
of nigrostriatal dopamine neurons in the basal ganglia.
6. Neurogenesis has recently been discovered to occur in adults in which
locations?
A) Only in the dentate gyrus of the hippocampus
B) In the dentate gyrus of the hippocampus and in the olfactory bulb
