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1. A 60-year-old woman has been recently diagnosed with multiple sclerosis,
a disease in which the oligodendrocytes of the patient's central nervous
system (CNS) are progressively destroyed. Which physiologic process within
the neurologic system is most likely be affected by this disease process?
Group of answer choices
Oxygen metabolism
Neurotransmitter synthesis
Nerve conduction
Production of cerebrospinal fluid: Nerve conduction
2. A pregnant woman's most recent ultrasound is suggestive of spina bifida,
and her primary care provider has subsequently order further diagnostic
testing. The pathophysiologic effects of this disease are due to:
Group of answer choices
malformation of the mesoderm.
abnormal closure of the neural tube.
lesions in the dorsal root ganglia.
hypertrophy of the primary vesicles.: abnormal closure of the neural tube.
3. A patient has required mechanical ventilation following a traumatic head
injury sustained in a motorcycle crash, during which he sustained damage
to his respiratory center. Which of the patient's brain structures has been
injured?
Group of answer choices
Brain stem
Midbrain
Diencephalon
Frontal lobe: Brain stem
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4. Myasthenia gravis is characterized by muscle weakness caused by anti-
body-mediated destruction of:
Group of answer choices
periorbital muscles.
thymus gland cells.
skeletal muscle fibers.
acetylcholine receptors: acetylcholine receptors
5. A patient has wrist inflammation causing compression of the median nerve
in the carpal tunnel. Manifestations of this syndrome include:
Group of answer choices
little finger numbness.
forearm paresthesia.
loss of tendon reflexes.
precision grip weakness.: precision grip weakness.
6. The cardinal symptoms of Parkinson disease include:
Group of answer choices
hypotonia.
bradykinesia.
paresthesia.
lack of sweating.: bradykinesia.
7. The patient has a traumatic complete spinal cord transection at the C5 level.
Intact motor and somatosensory function will include ______ control.
Group of answer choices
bladder
finger flexion
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diaphragm
trunk muscle: diaphragm
8. The demyelination and degeneration of nerve fibers characteristic of multi-
ple sclerosis is the result of:
decreased oligodendrocytes.
corticospinal injuries.
atherosclerotic destruction.
oligodendrocytic infection.: decreased oligodendrocytes.
9. Autonomic dysreflexia (autonomic hyperreflexia) is characterized by:
severe spinal shock.
tachycardia and pale skin.
lack of sweat above injury level.
vasospasms and hypertension.: vasospasms and hypertension.
10. Which of the following disorders of neuromuscular function typically has
the most rapid onset?
Duchenne muscular dystrophy (DMD)
Guillain-Barré syndrome
Parkinson disease
Myasthenia gravis: Guillain-Barré syndrome
11. A patient who experienced a traumatic head injury from a severe blow
to the back of his head now lives with numerous function deficits, including
an inability to maintain steady posture while he is in a standing position,
although he is steadier when walking. Which of the following disorders most
likely resulted from his injury?
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Cerebellar dystaxia
Cerebellar tremor
A lower motor neuron lesion
A vestibulocerebellar disorder: A vestibulocerebellar disorder
12. A patient's recent diagnosis of Parkinson disease has prompted his care
provider to promptly begin pharmacologic therapy. The drugs that are selected
will likely influence the patient's levels of:
dopamine.
acetylcholine.
serotonin.
adenosine.: dopamine
13. A patient is devastated to receive a diagnosis of amyotrophic lateral scle-
rosis (ALS). The symptomatology of this disease is a result of its effects on:
upper motor neurons.
the vestibulocerebellar system.
upper and lower motor neurons.
neuromuscular junctions.: upper and lower motor neurons.
14. Restoration of the integrity of myelin sheaths would likely result in a
slowing or stopping of the progression of:
Amyotrophic lateral sclerosis (ALS)
Multiple sclerosis (MS)
Duchenne muscular dystrophy (DMD)
Paralysis caused by Clostridium botulinum: Multiple sclerosis (MS)