CNS Flashcards
The following are true about neurons, except:
a. highly metabolically active
b. proliferates after an injury
c. lengthy lifespan
d. high metabolic rate
B
The following are seen during axonal reaction, except:
a. enlargement and rounding up of cell body
b. central displacement of nucleus
c. enlargement of nucleolus
d. dispersion of Nissl substance
B
It is the most common histopathologic marker of CNS injury
a. gliosis
b. reactive astrocytes
c. genitocyric astrocytes
d. rosenthral fibers
A
The following causes neural tube defects due to primary bony defects caused by abnormal axial mesoderm, except:
a. encephalocele
b. meningocele
c. spina bifida
d. myelomeningocele
D
failure of neural tube closure: anencephaly, myelomengingocele
It is the most common neural tube defect
a. encephalocele
b. meningocele
c. spina bifida
d. myelomeningocele
C
It is the hypoplasia of cerebellar dermis with apparent elongation of cerebellar peduncles and altered shape of brainstem
a. Chiari type II malformation
b. Chiari type I malformation
c. Dandy-Wlaker malformation
d. Joubert syndrome
D
It is the most common type of intracranial aneurysm
a. mycotic
b. traumatic
c. saccular
d. dissecting
e. atherosclerotic
C
It is the common causative irganism of acute pyogenic meningitis in young adults
a. E. coli
b. group B strep
c. N. meningitidis
d. S. pneumoniae
e. L. monocytogenes
C
a and b - infants
d and e - older adults
Inflammation of meninges and brain parenchyma
a. meningitis
b. meningoencephalitis
c. brain abscess
d. extradural abscess
B
Commonly associated with osteomyelitis
a. meningitis
b. meningoencephalitis
c. brain abscess
d. extradural abscess
D
Most common prion disease that manifests as rapidly progressive dementia
a. Creutzfeldt-Jakob disease
b. Alzheimer disease
c. Germann-Straussler-Sheinker syndrome
d. fatal familial insomnia
A
Pick bodies
a. Parkinson disease
b. Alzheimer’s disease
c. Huntington disease
d. Frontotemporal lobar degenerations
D
Parkinson - lewy bodies
Autosomal recessive, ataxic-dyskinetic syndrome beginning in childhood
a. spinocerebellar ataxia
b. Friedreich ataxia
c. Ataxia-telangiectasia
d. ALS
C
Which of the following is WHO grade I tumor?
a. pilocytic astrocytomas
b. diffuse astrocytoma
c. anaplastic astrocytoma
d. gliobastoma
A
Grades I-IV: PDAG
infiltrating: WHO grade II-IV
Have best prognosis among glial tumors
a. astrocytoma
b. ependymoma
c. oligodendroglioma
d. subependymoma
C
