Correct Answers
Question 1
What EEG finding is most often associated with childhood absence epilepsy?
Correct Answer
generalized 3Hz spike and wave complexes
Question 2
What is communicating hydrocephalus?
Correct Answer
it is non-obstructive; occurs with a defect in excretion through the sub-arachnoid
space; most commonly caused by meningitis
Question 3
Describe surface electromyography artifact aka muscle artifact of the scalp and face
Correct Answer
rhythmic activity of high amplitude and frequency most commonly seen in the
temporal and frontal electrodes
Question 4
EEG pattern of hypsarrythmia
Correct Answer
West's Syndrome
Question 5
Intorsion
Correct Answer
to rotate eyeball by twisting cornea toward the nose
Page 1 of 422
,Question 6
Using a constant voltage, what is the maximum current a person can grasp and
probably still "let go"?
Correct Answer
a. 16mA
Question 7
Define amplifier
Correct Answer
a combination of electronic components designed to increase voltage
Question 8
Parallel fibers
Correct Answer
-regular array of parallel fibers in molecular layer of cerebellar cortex
-only a thin glial covering separates some parallel fibers from the surface of the
cerebellum
Question 9
In the sample above, the artifact is _______ and you can be sure of this because
________.
Correct Answer
c. 60Hz noise & electrode popping; the display time base has been changed to
better identify the sinusoidal morphology & frequency of 60Hz & the mirrored
phase reversing which is not reflected in adjacent electrodes would indicate
electrode popping/artifact
Question 10
Where does the vertebral artery enter the skull?
Correct Answer
it originates at the first branch of the sub-clavian, runs through foramina in cervical
vertebrae C6, enters the base of the skull through the foramen magnum and
ascends along the medulla
Page 2 of 422
,Question 11
Upper motor neurons are
Correct Answer
axons in descending pathways
Question 12
nephr/o
Correct Answer
kidney
Question 13
How is the cerebral hemisphere divided?
Correct Answer
into medial and lateral
Question 14
Define proton
Correct Answer
an elementary particle with a positive charge in the central nucleus of an atom
Question 15
What arteries account for most of the blood supply to the brain?
Correct Answer
the two internal carotids account for 85% of cerebral blood flow and thus supply
most of the blood to the brain
Question 16
What do the multiple parallel loops of the basal ganglia do?
Correct Answer
project from cerebral cortex to basal ganglia and back
Page 3 of 422
, Question 17
Central pattern generator for mergence is in
Correct Answer
reticular formation of the rostral midbrain
Question 18
Reactivity
Correct Answer
refers to the reaction of the EEG to stimulation or to a stimulus-related change in
morphology
Question 19
irid/o
Correct Answer
iris (eye)
Question 20
Temporary memory storage that is critical to rapid computer operations:
Correct Answer
c. RAM
Question 21
The dorsal gray of the spinal cord develops into the sensory nuclei of what cranial
nerves?
Correct Answer
CN V, VII, VIII, IX & X
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