NR 546 WEEK 4 MIDTERM EXAM –
350 PRACTICE QUESTIONS AND
CORRECT ANSWERS WITH
RATIONALES
Section 1: Neurobiology and Functional Neuroanatomy (Questions 1–50)
1. How does the orbitofrontal cortex (OFC) affect the amygdala?
A. It only inhibits the amygdala
B. It only activates the amygdala
C. It inhibits and activates the amygdala
D. It has no effect on the amygdala
Correct Answer: C
Rationale: The orbitofrontal cortex exerts both inhibitory and excitatory
effects on the amygdala, playing a critical role in emotional regulation and fear
extinction.
2. Wernicke's area is associated with which of the following functions?
,A. Speech production
B. Speech comprehension
C. Visual processing
D. Motor coordination
Correct Answer: B
Rationale: Wernicke's area, located in the superior temporal gyrus, is
primarily responsible for language comprehension. Damage to this area
results in receptive aphasia.
3. The limbic system is associated with which of the following?
A. Motor function and coordination
B. Emotion and learning
C. Visual processing
D. Respiratory regulation
Correct Answer: B
Rationale: The limbic system, including structures such as the hippocampus,
amygdala, and hypothalamus, is critical for emotion regulation, memory
formation, and learning.
4. Which brain structure is most associated with longterm memory?
,A. Amygdala
B. Hypothalamus
C. Hippocampus
D. Thalamus
Correct Answer: C
Rationale: The hippocampus is essential for the consolidation of shortterm
memory into longterm memory and spatial navigation.
5. Which of the following are involved in regulating neurotransmission via
excitation secretion coupling?
A. Voltage sensitive sodium channels and voltage sensitive calcium channels
B. Potassium channels and chloride channels
C. Gprotein coupled receptors only
D. Ligand gated ion channels only
Correct Answer: A
Rationale: Excitation secretion coupling in neurons involves voltagesensitive
sodium channels (for action potential generation) and voltagesensitive
calcium channels (for neurotransmitter release).
6. The temporal lobe is primarily involved in which functions?
, A. Executive function and decisionmaking
B. Shortterm memory, speech, auditory signals, and smell recognition
C. Visual processing and spatial awareness
D. Motor planning and coordination
Correct Answer: B
Rationale: The temporal lobe processes auditory information, is involved in
shortterm memory, speech comprehension, and olfactory recognition.
7. Which brain structure is considered the "pleasure center" of the brain?
A. Prefrontal cortex
B. Nucleus accumbens
C. Hippocampus
D. Cerebellum
Correct Answer: B
Rationale: The nucleus accumbens is a key structure in the reward pathway
and is often referred to as the brain's pleasure center, mediating the
reinforcing effects of drugs and natural rewards.
8. The amygdalacentered circuit is associated with which of the following?
A. Executive function
350 PRACTICE QUESTIONS AND
CORRECT ANSWERS WITH
RATIONALES
Section 1: Neurobiology and Functional Neuroanatomy (Questions 1–50)
1. How does the orbitofrontal cortex (OFC) affect the amygdala?
A. It only inhibits the amygdala
B. It only activates the amygdala
C. It inhibits and activates the amygdala
D. It has no effect on the amygdala
Correct Answer: C
Rationale: The orbitofrontal cortex exerts both inhibitory and excitatory
effects on the amygdala, playing a critical role in emotional regulation and fear
extinction.
2. Wernicke's area is associated with which of the following functions?
,A. Speech production
B. Speech comprehension
C. Visual processing
D. Motor coordination
Correct Answer: B
Rationale: Wernicke's area, located in the superior temporal gyrus, is
primarily responsible for language comprehension. Damage to this area
results in receptive aphasia.
3. The limbic system is associated with which of the following?
A. Motor function and coordination
B. Emotion and learning
C. Visual processing
D. Respiratory regulation
Correct Answer: B
Rationale: The limbic system, including structures such as the hippocampus,
amygdala, and hypothalamus, is critical for emotion regulation, memory
formation, and learning.
4. Which brain structure is most associated with longterm memory?
,A. Amygdala
B. Hypothalamus
C. Hippocampus
D. Thalamus
Correct Answer: C
Rationale: The hippocampus is essential for the consolidation of shortterm
memory into longterm memory and spatial navigation.
5. Which of the following are involved in regulating neurotransmission via
excitation secretion coupling?
A. Voltage sensitive sodium channels and voltage sensitive calcium channels
B. Potassium channels and chloride channels
C. Gprotein coupled receptors only
D. Ligand gated ion channels only
Correct Answer: A
Rationale: Excitation secretion coupling in neurons involves voltagesensitive
sodium channels (for action potential generation) and voltagesensitive
calcium channels (for neurotransmitter release).
6. The temporal lobe is primarily involved in which functions?
, A. Executive function and decisionmaking
B. Shortterm memory, speech, auditory signals, and smell recognition
C. Visual processing and spatial awareness
D. Motor planning and coordination
Correct Answer: B
Rationale: The temporal lobe processes auditory information, is involved in
shortterm memory, speech comprehension, and olfactory recognition.
7. Which brain structure is considered the "pleasure center" of the brain?
A. Prefrontal cortex
B. Nucleus accumbens
C. Hippocampus
D. Cerebellum
Correct Answer: B
Rationale: The nucleus accumbens is a key structure in the reward pathway
and is often referred to as the brain's pleasure center, mediating the
reinforcing effects of drugs and natural rewards.
8. The amygdalacentered circuit is associated with which of the following?
A. Executive function
