CBIS CERTIFIED BRAIN INJURY SPECIALIST EXAM BANK
2026/2027
2 VERSIONS OF QUESTIONS AND ACCURATE ANSWERS
WITH FREQUENTLY TESTED QUESTIONS AND STUDY GUIDE
EXPERT VERIFIED FOR GUARANTEED PASS/ALREADY GRADED A+
VERSION 1
Section 1: Neuroanatomy & Pathophysiology of Brain Injury
Q1: A patient sustains a traumatic brain injury and presents with profound personality changes,
disinhibition, and difficulty planning future actions. Which lobe of the brain is most likely
injured?
A. Parietal lobe
B. Occipital lobe
C. Frontal lobe [CORRECT]
D. Temporal lobe
Correct Answer: C
Rationale: The frontal lobe is responsible for executive functions (planning, organization) and
personality regulation (inhibition, social behavior). Damage here leads to the described
symptoms. Parietal is for sensation, Occipital for vision, Temporal for memory and hearing.
CBIS Core Content Area: Neuroanatomy.
Q2: Which structure acts as the primary relay station for sensory information (except smell) to
the cerebral cortex?
A. Hypothalamus
B. Thalamus [CORRECT]
C. Pons
D. Reticular formation
,Correct Answer: B
Rationale: The thalamus is the "relay station" of the brain. The hypothalamus regulates
autonomic and endocrine function. The pons is part of the brainstem involved in respiration and
sleep cycles. CBIS Core Content Area: Neuroanatomy.
Q3: A patient exhibits a "flaccid" paralysis on the right side of the body, indicating damage to the
upper motor neurons. Where is the lesion most likely located?
A. Peripheral nerve
B. Cerebellum
C. Motor cortex or corticospinal tract [CORRECT]
D. Dorsal root ganglion
Correct Answer: C
Rationale: Upper motor neuron lesions (cortex or spinal cord) cause spasticity or flaccidity (in
shock phase) below the level of injury. Peripheral nerve damage affects lower motor neurons.
Cerebellar damage causes ataxia, not paralysis. CBIS Core Content Area: Neuroanatomy.
Q4: Damage to the hippocampus, located in the medial temporal lobe, primarily results in which
deficit?
A. Inability to coordinate voluntary movement
B. Difficulty forming new memories (Anterograde amnesia) [CORRECT]
C. Loss of visual field (hemianopsia)
D. Inability to comprehend language
Correct Answer: B
Rationale: The hippocampus is crucial for the consolidation of short-term memory into long-
term memory. Damage leads to anterograde amnesia. CBIS Core Content Area: Neuroanatomy.
,Q5: Which part of the brain is responsible for maintaining balance and coordination?
A. Medulla oblongata
B. Cerebellum [CORRECT]
C. Corpus callosum
D. Amygdala
Correct Answer: B
Rationale: The cerebellum coordinates voluntary movement, balance, and posture. The medulla
controls vital autonomic functions. The corpus callosum connects hemispheres. The amygdala
processes emotion. CBIS Core Content Area: Neuroanatomy.
Q6: A patient who suffered a TBI presents with bitemporal hemianopsia. Where is the lesion
likely located?
A. Optic chiasm [CORRECT]
B. Left occipital lobe
C. Right optic nerve
D. Frontal eye fields
Correct Answer: A
Rationale: The optic chiasm is where fibers from the nasal retina cross. Compression here (e.g.,
by a pituitary tumor or swelling) causes loss of temporal visual fields in both eyes. CBIS Core
Content Area: Neuroanatomy.
Q7: What is the primary function of the reticular activating system (RAS)?
A. Motor control
B. Arousal and consciousness [CORRECT]
C. Temperature regulation
D. Hunger and satiety
Correct Answer: B
, Rationale: The RAS is a network of neurons in the brainstem that regulates wakefulness and
sleep-wake transitions. Damage here can result in coma. CBIS Core Content Area:
Neuroanatomy.
Q8: Which cranial nerve is responsible for pupil constriction and accommodation?
A. CN II (Optic)
B. CN III (Oculomotor) [CORRECT]
C. CN V (Trigeminal)
D. CN VII (Facial)
Correct Answer: B
Rationale: The Oculomotor nerve (CN III) controls most eye movements, including pupil
constriction via parasympathetic fibers. CBIS Core Content Area: Neuroanatomy.
Q9: In the context of TBI pathophysiology, what defines "primary injury"?
A. The biochemical cascade occurring after the initial impact
B. The neuronal damage occurring at the moment of impact [CORRECT]
C. The cerebral edema developing 24 hours post-injury
D. The hypoxic-ischemic insult resulting from low blood pressure
Correct Answer: B
Rationale: Primary injury is the direct mechanical damage (shearing, tearing, contusion)
occurring at the instant of trauma. Secondary injury evolves over time due to biochemical
processes. CBIS Core Content Area: Pathophysiology.
Q10: Which of the following is a mechanism of secondary brain injury?
A. Contusion
B. Diffuse Axonal Injury
C. Excitotoxicity [CORRECT]
D. Skull fracture
Correct Answer: C
2026/2027
2 VERSIONS OF QUESTIONS AND ACCURATE ANSWERS
WITH FREQUENTLY TESTED QUESTIONS AND STUDY GUIDE
EXPERT VERIFIED FOR GUARANTEED PASS/ALREADY GRADED A+
VERSION 1
Section 1: Neuroanatomy & Pathophysiology of Brain Injury
Q1: A patient sustains a traumatic brain injury and presents with profound personality changes,
disinhibition, and difficulty planning future actions. Which lobe of the brain is most likely
injured?
A. Parietal lobe
B. Occipital lobe
C. Frontal lobe [CORRECT]
D. Temporal lobe
Correct Answer: C
Rationale: The frontal lobe is responsible for executive functions (planning, organization) and
personality regulation (inhibition, social behavior). Damage here leads to the described
symptoms. Parietal is for sensation, Occipital for vision, Temporal for memory and hearing.
CBIS Core Content Area: Neuroanatomy.
Q2: Which structure acts as the primary relay station for sensory information (except smell) to
the cerebral cortex?
A. Hypothalamus
B. Thalamus [CORRECT]
C. Pons
D. Reticular formation
,Correct Answer: B
Rationale: The thalamus is the "relay station" of the brain. The hypothalamus regulates
autonomic and endocrine function. The pons is part of the brainstem involved in respiration and
sleep cycles. CBIS Core Content Area: Neuroanatomy.
Q3: A patient exhibits a "flaccid" paralysis on the right side of the body, indicating damage to the
upper motor neurons. Where is the lesion most likely located?
A. Peripheral nerve
B. Cerebellum
C. Motor cortex or corticospinal tract [CORRECT]
D. Dorsal root ganglion
Correct Answer: C
Rationale: Upper motor neuron lesions (cortex or spinal cord) cause spasticity or flaccidity (in
shock phase) below the level of injury. Peripheral nerve damage affects lower motor neurons.
Cerebellar damage causes ataxia, not paralysis. CBIS Core Content Area: Neuroanatomy.
Q4: Damage to the hippocampus, located in the medial temporal lobe, primarily results in which
deficit?
A. Inability to coordinate voluntary movement
B. Difficulty forming new memories (Anterograde amnesia) [CORRECT]
C. Loss of visual field (hemianopsia)
D. Inability to comprehend language
Correct Answer: B
Rationale: The hippocampus is crucial for the consolidation of short-term memory into long-
term memory. Damage leads to anterograde amnesia. CBIS Core Content Area: Neuroanatomy.
,Q5: Which part of the brain is responsible for maintaining balance and coordination?
A. Medulla oblongata
B. Cerebellum [CORRECT]
C. Corpus callosum
D. Amygdala
Correct Answer: B
Rationale: The cerebellum coordinates voluntary movement, balance, and posture. The medulla
controls vital autonomic functions. The corpus callosum connects hemispheres. The amygdala
processes emotion. CBIS Core Content Area: Neuroanatomy.
Q6: A patient who suffered a TBI presents with bitemporal hemianopsia. Where is the lesion
likely located?
A. Optic chiasm [CORRECT]
B. Left occipital lobe
C. Right optic nerve
D. Frontal eye fields
Correct Answer: A
Rationale: The optic chiasm is where fibers from the nasal retina cross. Compression here (e.g.,
by a pituitary tumor or swelling) causes loss of temporal visual fields in both eyes. CBIS Core
Content Area: Neuroanatomy.
Q7: What is the primary function of the reticular activating system (RAS)?
A. Motor control
B. Arousal and consciousness [CORRECT]
C. Temperature regulation
D. Hunger and satiety
Correct Answer: B
, Rationale: The RAS is a network of neurons in the brainstem that regulates wakefulness and
sleep-wake transitions. Damage here can result in coma. CBIS Core Content Area:
Neuroanatomy.
Q8: Which cranial nerve is responsible for pupil constriction and accommodation?
A. CN II (Optic)
B. CN III (Oculomotor) [CORRECT]
C. CN V (Trigeminal)
D. CN VII (Facial)
Correct Answer: B
Rationale: The Oculomotor nerve (CN III) controls most eye movements, including pupil
constriction via parasympathetic fibers. CBIS Core Content Area: Neuroanatomy.
Q9: In the context of TBI pathophysiology, what defines "primary injury"?
A. The biochemical cascade occurring after the initial impact
B. The neuronal damage occurring at the moment of impact [CORRECT]
C. The cerebral edema developing 24 hours post-injury
D. The hypoxic-ischemic insult resulting from low blood pressure
Correct Answer: B
Rationale: Primary injury is the direct mechanical damage (shearing, tearing, contusion)
occurring at the instant of trauma. Secondary injury evolves over time due to biochemical
processes. CBIS Core Content Area: Pathophysiology.
Q10: Which of the following is a mechanism of secondary brain injury?
A. Contusion
B. Diffuse Axonal Injury
C. Excitotoxicity [CORRECT]
D. Skull fracture
Correct Answer: C
