Exam 3 - Questions, Answers & Rationales
Downstate Medical Center | Fall 2026 Review.
1. Which pathway in the study guide carries pain, thermal sensation, crude touch, and pressure?
A. Extrapyramidal system
B. Discriminative pathway
C. Pyramidal motor system
D. Anterolateral pathway
Correct Answer: D. Anterolateral pathway
Rationale: The study guide identifies the anterolateral pathway as carrying pain, thermal sensation, crude touch, and pressure.
2. A patient can identify a screwdriver placed in the hand without looking at it. Which sensory ability is being
demonstrated?
A. Avolition
B. Stereognosis
C. Bradykinesia
D. Allodynia
Correct Answer: B. Stereognosis
Rationale: Stereognosis is the ability to recognize the shape and size of an object without visualization and requires intact
discriminative pathways and higher-order parietal association cortex.
3. Which pain fibers are associated with fast pain?
A. Oligodendrocytes
B. C fibers
C. Schwann cells
D. A-delta fibers
Correct Answer: D. A-delta fibers
Rationale: The notes distinguish A-delta fibers as the fast pain fibers, whereas C fibers are smaller and slower.
4. Which tract is associated with sharp, stabbing pain?
A. Pyramidal tract
B. Nigrostriatal pathway
C. Neospinothalamic tract
D. Paleospinothalamic tract
Correct Answer: C. Neospinothalamic tract
Rationale: The study guide links the neospinothalamic tract with sharp, stabbing pain.
5. Which description best matches visceral pain?
A. Sharp burning pain originating in skin and subcutaneous tissue
B. Pain limited to a ligament after abnormal joint movement
C. A painless sensory deficit confined to one peripheral nerve
D. Diffuse, poorly defined pain originating in visceral organs
Correct Answer: D. Diffuse, poorly defined pain originating in visceral organs
Rationale: The final review emphasizes that visceral pain is diffuse and poorly defined, arises from visceral organs, and is the most
common pain produced by disease.
6. A sprained ankle is used in the study guide as an example of which type of pain?
A. Cutaneous pain
B. Deep somatic pain
C. Referred pain
D. Visceral pain
Correct Answer: B. Deep somatic pain
Rationale: Deep somatic pain originates in structures such as periosteum, muscles, tendons, joints, and blood vessels; a sprained ankle
is the example provided.
7. A patient has recurrent sharp, stabbing facial pain without numbness. Which disorder is most consistent with the
study guide?
A. Trigeminal neuralgia
B. Phantom limb pain
C. Complex regional pain syndrome
D. Postherpetic neuralgia
Correct Answer: A. Trigeminal neuralgia
Rationale: Trigeminal neuralgia is described as sharp, stabbing pain without numbness and involves cranial nerve V with
demyelination of axons in the ganglion, root, and nerve.
NRMS 5190 Exam 3 Review | 1
,8. Trigeminal neuralgia primarily involves which cranial nerve according to the notes?
A. Cranial nerve VII
B. Cranial nerve X
C. Cranial nerve V
D. Cranial nerve II
Correct Answer: C. Cranial nerve V
Rationale: The review explicitly states that trigeminal neuralgia affects cranial nerve V.
9. Myasthenia gravis in the study guide is caused by which mechanism?
A. Progressive destruction of the nigrostriatal pathway
B. Antibody-mediated loss of acetylcholine receptors at the neuromuscular junction
C. A single recessive gene defect transmitted from mother to male offspring
D. Autoimmune destruction of oligodendrocytes in the CNS
Correct Answer: B. Antibody-mediated loss of acetylcholine receptors at the neuromuscular junction
Rationale: Myasthenia gravis is described as an autoimmune disease caused by antibody-mediated loss of acetylcholine receptors at
the neuromuscular junction.
10. Which symptom pattern is most characteristic of myasthenia gravis in the uploaded material?
A. Resting tremor disappears as the day proceeds
B. Weakness is least evident in the morning and worsens with effort as the day proceeds
C. Symptoms are limited to sensory loss without muscle fatigue
D. Weakness begins rapidly with loss of tendon reflexes and then resolves with activity
Correct Answer: B. Weakness is least evident in the morning and worsens with effort as the day proceeds
Rationale: The notes state that myasthenia gravis symptoms are least evident in the morning and worsen with effort and as the day
proceeds.
11. Guillain-Barre syndrome is described as which type of disorder?
A. Autoimmune destruction of CNS oligodendrocytes with remissions and exacerbations
B. Degenerative basal ganglia disorder with resting tremor
C. Acute immune-mediated polyneuropathy with rapid limb weakness and loss of tendon reflexes
D. Inherited muscular dystrophy affecting boys at age 2-3 years
Correct Answer: C. Acute immune-mediated polyneuropathy with rapid limb weakness and loss of tendon reflexes
Rationale: The source describes Guillain-Barre syndrome as an acute immune-mediated polyneuropathy that begins rapidly with limb
weakness and loss of tendon reflexes.
12. Which pathophysiologic change is central to Parkinson disease in the study guide?
A. Progressive destruction of the nigrostriatal pathway with reduced striatal dopamine
B. Loss of acetylcholine receptors at the neuromuscular junction
C. Demyelination of cranial nerve V
D. Autoimmune destruction of oligodendrocytes
Correct Answer: A. Progressive destruction of the nigrostriatal pathway with reduced striatal dopamine
Rationale: Parkinson disease is linked to progressive destruction of the nigrostriatal pathway and reduced striatal dopamine
concentrations.
13. Which finding is described as the most visible manifestation of Parkinson disease?
A. Painless hematuria
B. Loss of tendon reflexes
C. Blank stare lasting a few seconds
D. Resting tremor with pill-rolling movements
Correct Answer: D. Resting tremor with pill-rolling movements
Rationale: The notes identify tremor as the most visible Parkinson manifestation and describe pill-rolling movements of the forefinger
and thumb.
14. Bradykinesia in Parkinson disease refers to which finding?
A. Involuntary loss of urine with coughing
B. Loss of awareness with a blank stare
C. Pain produced by light touch
D. Slowness in initiating and performing movements
Correct Answer: D. Slowness in initiating and performing movements
Rationale: Bradykinesia is defined in the notes as slowness in initiating and performing movement, including difficulty with sudden
stopping of voluntary movement.
NRMS 5190 Exam 3 Review | 2
, 15. Multiple sclerosis is primarily associated with which pathophysiologic process?
A. Destruction of the nigrostriatal pathway
B. Loss of factor VIII and von Willebrand factor
C. Autoimmune demyelination of white matter in the brain, spinal cord, and optic nerve
D. Antibody-mediated loss of acetylcholine receptors
Correct Answer: C. Autoimmune demyelination of white matter in the brain, spinal cord, and optic nerve
Rationale: The study guide describes multiple sclerosis as an autoimmune attack on oligodendrocytes causing demyelination in the
white matter of the brain, spinal cord, and optic nerve.
16. Which clinical course is characteristic of the relapsing-remitting form of multiple sclerosis?
A. Gradual deterioration only after a previous relapsing-remitting course
B. Continuous neurologic degeneration from the onset without relapses
C. A single episode followed by permanent complete recovery
D. Episodes of acute neurologic worsening with recovery and a stable course between relapses
Correct Answer: D. Episodes of acute neurologic worsening with recovery and a stable course between relapses
Rationale: Relapsing-remitting MS is described as acute worsening followed by recovery with stability between relapses.
17. Which description best matches secondary progressive multiple sclerosis?
A. Gradual neurologic deterioration in a person with previous relapsing-remitting disease
B. Acute immune-mediated polyneuropathy with loss of reflexes
C. Nearly continuous degeneration from the initial onset of symptoms
D. Intermittent blank staring without motor activity
Correct Answer: A. Gradual neurologic deterioration in a person with previous relapsing-remitting disease
Rationale: Secondary progressive MS is described as gradual neurologic deterioration, with or without relapses, after a previous
relapsing-remitting course.
18. A seizure that begins in one specific area of one cerebral hemisphere is classified as which onset type?
A. Generalized onset
B. Tonic-clonic onset only
C. Focal onset
D. Absence onset only
Correct Answer: C. Focal onset
Rationale: The notes define focal-onset seizures as beginning in a specific or focal area of one cerebral hemisphere.
19. Which seizure type is described as a generalized, nonconvulsive event with a brief blank stare and rapid return to
normal activity?
A. Tonic-clonic seizure
B. Focal motor seizure
C. Absence seizure
D. Panic attack
Correct Answer: C. Absence seizure
Rationale: Absence seizures are described as brief generalized nonconvulsive episodes with staring, unresponsiveness, possible lip-
smacking, and rapid resumption of activity.
20. Which feature is characteristic of a tonic-clonic seizure in the study guide?
A. Sharp tonic muscle contraction with extension of the extremities and immediate loss of consciousness
B. A brief blank stare without convulsive activity
C. A painless enlargement of a single lymph node
D. A unilateral resting tremor that disappears with movement
Correct Answer: A. Sharp tonic muscle contraction with extension of the extremities and immediate loss of consciousness
Rationale: Tonic-clonic seizures are described as major motor seizures with a tonic contraction, extension of the extremities, and
immediate loss of consciousness; incontinence is common.
21. Damage to which lobe would most directly impair decision-making, reasoning, concentration, and purposeful
behavior according to the final review?
A. Temporal lobe
B. Frontal lobe
C. Parietal lobe
D. Occipital lobe
Correct Answer: B. Frontal lobe
Rationale: The final review lists decision-making, motivation, reasoning, concentration, purposeful behavior, memory sequencing,
language meaning, speech organization, and emotional response under frontal-lobe function.
NRMS 5190 Exam 3 Review | 3