Nervous System Comprehensive
Radiographic Exam with Actual
Answers 2026-2027 Updated.
1. Which of the following structures is NOT considered part of the brainstem?
a. Pons
b. Medulla oblongata
c. Diencephalon
d. Midbrain - Answer ANS: C
2. Which of the following is the modality of choice for detecting cerebrovascular hemorrhage
following acute head trauma?
a. Computed tomography
b. Magnetic resonance imaging
c. Nuclear medicine
d. Sonography - Answer ANS: A
3. A ventricular shunt is placed between the ventricles and the _____ to drain excess CSF in
patients diagnosed with hydrocephalus.
a. internal jugular vein
b. heart
c. peritoneum
d. all of the above - Answer ANS: D
4. Since the introduction of CT, the overall mortality rate due to brain abscesses has decreased
from more than 40% to less than:
a. 30%.
b. 15%.
c. 5%.
d. 0.5%. - Answer ANS: C
5. Which of the following advanced MR imaging techniques is not useful in supporting a
diagnosis of MS?
a. Diffusion imaging
,b. Functional imaging (fMRI)
c. Perfusion imaging
d. Magnetization transfer - Answer ANS: B
6. Noncontrast brain CT scans are most commonly used to diagnose patients with strokelike
symptoms because of their:
a. high sensitivity to ischemic strokes.
b. high sensitivity to hemorrhagic strokes.
c. wide availability.
d. both b and c. - Answer ANS: D
7. In children, brain tumors often tend to occur in the:
a. brainstem.
b. frontal lobe.
c. temporal lobes.
d. posterior fossa. - Answer ANS: D
8. Distinguishing clinical features of astrocytomas include:
a. fast growing.
b. infiltrative tumors.
c. high grade of malignancy.
d. all of the above. - Answer ANS: B
9. Meningiomas are fed by the meningeal arteries, often enabling demonstration of an enlarged
foramen spinosum and increased meningeal vascular markings on: a. skull radiography.
b. contrast-enhanced CT.
c. contrast-enhanced MRI.
d. all of the above. - Answer ANS: A
10. Which of the following is NOT one of three tumors of the peripheral nerve sheath?
a. Acoustic neuroma
b. Acoustic neurilemma
c. Schwannoma
d. Pituitary adenoma - Answer ANS: D
, 11. What are the three meningeal layers of the spinal cord, in order, from outermost to
innermost?
a. Dura mater, arachnoid mater, pia mater
b. Arachnoid mater, dura mater, pia mater
c. Pia mater, arachnoid mater, dura mater
d. Dura mater, pia mater, arachnoid mater - Answer ANS: A
12. The primary role of conventional radiography in imaging of the central nervous system
includes the demonstration of:
1. fractures related to cranial trauma.
2. calcifications related to chronic disease.
3. cerebral aneurysms.
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 - Answer ANS: A
13. Which of the following pathologic conditions would demonstrate as a decrease in tissue
density on CT images of the CNS?
1. Cerebral infarctions
2. Cerebral calcifications
3. CNS cysts
a. 1 and 2 only
b. 1 and 3 only
c. 2 and 3 only
d. 1, 2, and 3 - Answer ANS: B
14. What imaging modality is most commonly used to image the brain of neonates?
a. CT
b. Conventional radiography
c. MRI
d. Ultrasound - Answer ANS: D
15. Which of the following neurologic deficits are associated with a meningomyelocele?
1. Diminished control of the urinary bladder
2. Diminished control of the bowel