Deck 21: The Nervous System

Question 1

The most common cause of stroke in the United States is:

A) Arterial hypertension
B) Intracranial hypertension
C) Atherosclerosis
D) Congenital berry aneurysms
E) Arteriovenous communications in the brain

Answer 1

Atherosclerosis

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%
E) Unpredictable

Answer 2

66 %

Question 3

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
E) Contrecoup lesion

Answer 3

Brain concussion

Question 4

Axons are cytoplasmic extensions of:

A) Astrocytes
B) Oligodendroglia cells
C) Microglia cells
D) Neurons
E) Ependymal cells

Question 5

Which of the following diseases is inherited as an autosomal dominant trait?

A) Alzheimer's disease
B) Tabes dorsalis
C) Parkinson's disease
D) Amyotrophic lateral sclerosis
E) Huntington's disease

Question 6

Which tumor can be surgically resected with no residual consequences?

A) Astrocytoma
B) Oligodendroglioma
C) Ependymoma
D) Medulloblastoma
E) Meningioma

Question 7

The most common location of glioblastoma multiforme is:

A) Cerebrum
B) Pons
C) Cerebellum
D) Medulla oblongata
E) Spinal cord

Question 8

The most prominent clinical feature of Alzheimer's disease is:

A) Ataxia
B) Tremor
C) Dementia
D) Aphasia
E) Apraxia

Question 9

Which tumor occurs only in peripheral nerves?

A) Meningioma
B) Oligodendroglioma
C) Schwannoma
D) Medulloblastoma
E) Ependymoma

Question 10

In myelomeningocele,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
E) Meninges and displaced parts of the cerebellum

Question 11

Multiple plaques of demyelination visible by MRI scanning are typical of:

A) Creutzfeldt-Jakob disease
B) Huntington's disease
C) Viral encephalitis
D) Multiple sclerosis
E) Brain abscess

Question 12

Most primary malignant tumors of the brain originate from:

A) Neurons
B) Astrocytes
C) Oligodendroglia cells
D) Microglia cells
E) Meninges

Question 13

Which disease can be transmitted by corneal transplantation?

A) Huntington's disease
B) Alzheimer's disease
C) Creutzfeldt-Jakob disease
D) Meningococcal meningitis
E) Parkinson's disease

Question 14

The most common characteristic of epilepsy is:

A) Apraxia
B) Dementia
C) Seizures
D) Dysphagia
E) Tremors

Question 15

Tabes dorsalis is characterized by:

A) Atrophy in frontal (motor) cortex
B) Atrophy of basal ganglia
C) Hypertrophy of putamen
D) Atrophy of anterior horns of the spinal cord
E) Atrophy of the posterior columns of the spinal cord

Question 16

Korsakoff's 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
E) Vitamin E

Question 17

Ruptured saccular congenital aneurysms,so-called berry aneurysms,cause hemorrhage that is best classified as:

A) Subdural
B) Epidural
C) Subarachnoid
D) Intraventricular
E) Intracerebral

Question 18

St.Louis encephalitis is transmitted by:

A) Dust inhalation
B) Living in close quarters
C) Mosquito and tick bites
D) Sexual contact
E) Kissing

Question 19

Highly malignant tumors exclusively found in the cerebellum of children are called:

A) Glioblastoma multiforme
B) Medulloblastoma
C) Ependymoma
D) Oligodendroglioma
E) Meningioma

Question 20

In Parkinson's disease,which part of the brain shows depigmentation?

A) Frontal cortex
B) Occipital cortex
C) Cerebellum
D) Substantia nigra
E) Medulla oblongata