Question 1
pts
What pathologic alteration produces tremors at rest, rigidity, akinesia, and postural abnormalities?
Correct Answer
Atrophy of neurons in the substantia nigra that produce dopamine
You Answered
Atrophy of neurons in the hypothalamus that produce acetylcholine
Atrophy of neurons in the putamen that produce gamma-aminobutyric acid (GABA)
Atrophy of neurons in the caudate that produce serotonin
The hallmark characteristics of Parkinson disease are a result of a loss of dopaminergic
pigmented neurons in the substantia nigra (SN) pars compacta with dopaminergic
deficiency in the putamen portion of the striatum (the striatum includes the putamen and
caudate nucleus).
Question 2
pts
With receptive dysphasia (fluent), the individual is able to
respond in writing, but not in speech.
Correct!
comprehend speech, but not respond verbally.
respond verbally, but not comprehend speech.
speak back, but not comprehend speech.
Receptive dysphasia may result in expressive deficits.
Question 3
pts
Which disease process is infratentorial?
Correct!
Cerebellar neoplasm
Parkinson disease
Encephalitis
Cerebral neoplasm
, Examples of infratentorial disease process include compression of the brainstem
resulting from hematomas, hemorrhage, and aneurysm as well as cerebellar
hemorrhage, infarcts, abscesses, neoplasms, and demyelinating disorders.
Question 4
pts
Which is a characteristic of brainstem death?
Correct!
Apnea
Vegetative state
Locked-in syndrome
Comatose
Apnea is viewed as a criterion of brainstem death, whereas the remaining options
reflect cerebral death.
Question 5
pts
Since his cerebrovascular accident, a man has been denying his left hemiplegia. What term is used to
describe this finding?
Correct!
Anosognosia
Agraphia agnosia
Amusia agnosia
Visual agnosia
Anosognosia is ignorance or denial of existence of the disease.
Question 6
pts
Vomiting is associated with CNS injuries that compress which anatomic location(s)?
Vestibular nuclei in the midbrain
Correct!
Vestibular nuclei in the lower pons and medulla oblongata
Diencephalon
Floor of the third ventricle
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