Nervous System Test Bank

Question 1

What are axons cytoplasmic extensions of?
a. Astrocytes
b. Oligodendroglia cells
c. Microglia cells
d. Neurons

Answer 1

d. Neurons

Question 2

Glucose concentration in the CSF is 50 to 75 mg/dL. In general, this should be
______________ of the blood concentration.
a. 10%
b. 66%
c. 45%
d. 50%

Answer 2

b. 66%

Question 3

In a myelomeningocele, what does the protrusion of the defective spinal canal contains?
a. Skin only
b. Meninges only
c. Meninges and portion of the spinal cord
d. Meninges and vertebral bodies

Answer 3

c. Meninges and portion of the spinal cord

Question 4

Ruptured saccular congenital aneurysms, the so-called berry aneurysms, cause hemorrhage
that is best classified as
a. subdural.
b. epidural.
c. subarachnoid.
d. intraventricular.

Answer 4

c. subarachnoid.

Question 5

What is the most common cause of stroke in the United States?
a. Arterial hypertension
b. Intracranial hypertension
c. Atherosclerosis
d. Congenital berry aneurysms

Answer 5

c. Atherosclerosis

Question 6

Which form of brain injury does not cause significant macroscopic or microscopic changes in
the brain?
a. Brain concussion
b. Brain contusion
c. Brain laceration
d. Coup lesion

Answer 6

a. Brain concussion

Question 7

How is St. Louis encephalitis transmitted?
a. Dust inhalation
b. Living in close quarters
c. Mosquito and tick bites
d. Sexual contact

Answer 7

c. Mosquito and tick bites

Question 8

Which disease can be transmitted by corneal transplantation?
a. Huntington disease
b. Alzheimer disease
c. Creutzfeldt-Jakob disease
d. Meningococcal meningitis

Answer 8

c. Creutzfeldt-Jakob disease

Question 9

Tabes dorsalis is characterized by
a. atrophy in the frontal (motor) cortex.
b. atrophy of the basal ganglia.
c. hypertrophy of the putamen.
d. atrophy of the posterior columns of the spinal cord.

Answer 9

d. atrophy of the posterior columns of the spinal cord.

Question 10

Multiple plaques of demyelination visible by MRI scanning are typical of
a. Creutzfeldt-Jakob disease.
b. Huntington disease.
c. viral encephalitis.
d. multiple sclerosis.

Answer 10

d. multiple sclerosis.

Question 11

Korsakoff syndrome, which usually includes amnesia, confabulation, and general mental
deterioration, is typically caused by deficiency of
a. vitamin A.
b. vitamin B1.
c. vitamin C.
d. vitamin D.

Answer 11

b. vitamin B1.

Question 12

The most prominent clinical feature of Alzheimer disease is
a. ataxia.
b. tremor.
c. dementia.
d. aphasia.

Answer 12

c. dementia.

Question 13

In Parkinson disease, which part of the brain shows depigmentation?
a. Frontal cortex
b. Occipital cortex
c. Cerebellum
d. Substantia nigra

Answer 13

d. Substantia nigra

Question 14

Which of the following diseases is inherited as an autosomal dominant trait?
a. Alzheimer disease
b. Tabes dorsalis
c. Parkinson disease
d. Huntington disease

Answer 14

d. Huntington disease

Question 15

Most primary malignant tumors of the brain originate from
a. neurons.
b. astrocytes.
c. oligodendroglia cells.
d. microglia cells.

Answer 15

b. astrocytes.

Question 16

The most common location of glioblastoma multiforme is
a. cerebrum.
b. pons.
c. cerebellum.
d. medulla oblongata.

Answer 16

a. cerebrum.

Question 17

Highly malignant tumors exclusively found in the cerebellum of children are called
a. glioblastoma multiforme.
b. medulloblastoma.
c. ependymoma.
d. oligodendroglioma.

Answer 17

b. medulloblastoma.

Question 18

Which tumor can be surgically resected with no residual consequences?
a. Astrocytoma
b. Oligodendroglioma
c. Ependymoma
d. Meningioma

Answer 18

d. Meningioma

Question 19

Which tumor occurs only in peripheral nerves?
a. Meningioma
b. Oligodendroglioma
c. Schwannoma
d. Medulloblastoma

Answer 19

c. Schwannoma

Question 20

The most common characteristic of epilepsy is
a. apraxia.
b. dementia.
c. seizures.
d. dysphagia.

Answer 20

c. seizures.