Actual Exam 2026/2027 – Complete Exam-Style
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Section A: Central Nervous System — Brain Anatomy, Lobes, &
Functions (10 Questions)
Q1: A patient sustains a traumatic brain injury to the anterior portion of the cerebrum.
Following the injury, the patient demonstrates impaired judgment, difficulty planning
tasks, and changes in personality. Which cerebral lobe has most likely been damaged?
A. Occipital lobe
B. Temporal lobe
C. Frontal lobe [CORRECT]
D. Parietal lobe
Correct Answer: C
Rationale: The frontal lobe contains the prefrontal cortex, which governs executive
functions including judgment, planning, personality, and social behavior; damage here
produces the described deficits, whereas occipital damage affects vision and parietal
damage affects somatosensory integration.
Q2: A stroke patient is unable to produce fluent speech although speech comprehension
remains intact. The patient struggles to say "I want water" but understands when asked
to point to a glass. Which cortical area is most likely affected?
A. Wernicke's area
B. Broca's area [CORRECT]
C. Primary auditory cortex
D. Primary motor cortex
Correct Answer: B
,Rationale: Broca's area (inferior frontal gyrus, usually left hemisphere) controls motor
speech production; damage causes expressive (non-fluent) aphasia with preserved
comprehension, whereas Wernicke's area damage causes receptive aphasia with fluent
but nonsensical speech and poor comprehension.
Q3: A patient is asked to close their eyes and identify a key placed in their hand. Which
cortical region is primarily responsible for interpreting the tactile characteristics (size,
shape, texture) of the object?
A. Primary motor cortex
B. Primary somatosensory cortex [CORRECT]
C. Primary visual cortex
D. Primary auditory cortex
Correct Answer: B
Rationale: The primary somatosensory cortex (postcentral gyrus) in the parietal lobe
receives and interprets tactile, proprioceptive, and temperature information from the
contralateral body; it allows conscious perception of touch and object identification
through stereognosis.
Q4: A neurology student is identifying structures on a brain model and points to the
region that serves as a relay station for sensory information traveling to the cerebral
cortex and regulates consciousness, sleep, and alertness. Which structure is the
student describing?
A. Cerebellum
B. Hypothalamus
C. Thalamus [CORRECT]
D. Medulla oblongata
Correct Answer: C
Rationale: The thalamus is the major relay center of the diencephalon that processes
and directs sensory information (except smell) to appropriate cortical areas and
regulates consciousness and arousal; the hypothalamus controls autonomic and
endocrine functions, and the medulla regulates vital reflexes.
Q5: A patient with a lesion in the posterior cerebrum reports inability to recognize
written words despite intact vision. Which lobe contains the cortical area responsible
for interpreting visual language?
, A. Frontal lobe
B. Temporal lobe
C. Occipital lobe (angular gyrus region) [CORRECT]
D. Insula
Correct Answer: C
Rationale: The occipital lobe contains the primary visual cortex and association areas;
the angular gyrus (at the occipital-parietal-temporal junction) integrates visual
information for reading comprehension, and damage produces alexia (inability to read)
despite intact visual acuity.
Q6: Cerebrospinal fluid (CSF) is produced by the choroid plexuses and circulates
through the ventricular system. From the lateral ventricles, CSF flows sequentially
through which structures?
A. Third ventricle → cerebral aqueduct → fourth ventricle → subarachnoid space
[CORRECT]
B. Fourth ventricle → third ventricle → cerebral aqueduct → subarachnoid space
C. Third ventricle → fourth ventricle → cerebral aqueduct → subarachnoid space
D. Cerebral aqueduct → lateral ventricles → third ventricle → subarachnoid space
Correct Answer: A
Rationale: CSF flows from the lateral ventricles through the interventricular foramina
into the third ventricle, through the cerebral aqueduct into the fourth ventricle, and exits
via the lateral and median apertures into the subarachnoid space to be reabsorbed by
arachnoid granulations.
Q7: A patient develops bacterial meningitis. The infecting organism must cross which
meningeal layer that is intimately attached to the surface of the brain and spinal cord
and contains blood vessels?
A. Dura mater
B. Arachnoid mater
C. Pia mater [CORRECT]
D. Epidural space
Correct Answer: C
Rationale: The pia mater is the innermost meningeal layer that tightly adheres to the
neural tissue and carries blood vessels into the brain; pathogens causing meningitis