OS 202 B Samplex 2018 Flashcards
Wakefulness is disrupted in lesions of the:
A. Brainstem reticular formation B. Bilateral thalami C. Bilateral cerebral cortex D. AOTA
D
Dressing apraxia and left hemineglect are prominent features of lesions in the:
A. Frontal lobes B. Right thalamus C. Right parietal D. Non-dominant temporal
C
A type of higher cortical impairment wherein a patient can describe objects in their visual field in detail (color, texture, shape) but are unable to recognize the specific objects.
A. Visual agnosia B. Apraxia C. Astereognosia D. Anosognosia
A
Patients with this kind of aphasia are unable to perform repetition due to a lesion in the arcuate fasciculus (or rather the extreme capsule on MR diffusion tensor imaging)
A. Transcortical sensory aphasia B. Disconnection syndrome C. Conduction aphasia D. Wernicke’s aphasia
C
Despite a lateralized cerebral dominance for aspects such as music, math abilities, and facial recognition, both the right and left cerebral hemispheres are connected to each other and share information through this all important structure
A. Corpus callosum B. Falx cerebri C. Foramen of Monroe D. Arcuate fasciculus
A
Brain area in the inferior frontal lobe responsible for speech production and articulation
A. Wernicke’s area B. Broca’s area C. Arcuate fasciculus D. Fasciculus cuneatus
B
Denotes utter denial of an obvious handicap or illness such as hemiplegia or even blindness
A. Anosognosia B. Astereognosia C. Visual agnosia D. Hemineglect
A
Echolalia, palilalia, and neologisms are often seen in lesions of the:
A. Frontal lobe B. Parietal lobe C. Temporal lobe D. Occipital lobe
A
Asking for a historical event or a verifiable personal event (What school did you last attend?) tests:
A. Immediate memory B. Recent memory C. Delayed memory D. Remote memory
D
Mini-Mental Status Examination is equivalent to doing a full higher cortical function testing:
A. True B. False C. Sometimes D. All of the time
B
The structures that ¬initiate lateral gaze are:
A. Superior colliculus and medial geniculate body B. Frontal eye fields and parapontine reticular formation C. Abducens nucleus and oculomotor nerve complex D. Rostral interstitial nucleus of Cajal
B
On looking to the left side (L) to copy a friend’s scantron, your classmate Derpina develops diplopia. She has no problem copying answers off a friend seated to her right (R). She has dysconjugate gaze due to:
A. Disconnected medial longitudinal fasciculus between L CN VI and R CN III B. Non-functioning frontal eye field on the R side C. A cerebellar lesion on the L side D. Non-functioning parapontine reticular formation on the L side
A
The particular muscle to zero in while examining a patient with facial weakness to determine whether lesion is either upper or lower motor neuron is:
A. Frontalis B. Nasalis C. Buccinator D. Orbicularis oris
A
One of the following muscles innervated by the CN V can be tested in the neurologic exam
A. Frontalis B. Masseter C. Orbicularis oris D. Mylohyoid
B
In assessing the integrity of the motor component of CN V, the ball of the palm is placed on:
A. The maxilla B. The mandible C. The glabella D. The chin
B
In assessing the integrity of the spinal accessory nerve, the ball of the palm is placed on:
A. The maxilla B. The mandible C. The glabella D. The chin
A
A peripheral facial nerve weakness can be differentiated from a central facial nerve palsy by asking the patient to:
A. Wrinkle the forehead B. Smile C. Close the eyes tight D. Pull the corners of the mouth downward forcefully
A
A lesion of the right CN XII or the supranuclear corticobulbar fibers on the right will be manifested by this finding on tongue protrusion
A. Remains in midline B. Deviates to right on tongue protrusion C. Deviates to left on tongue protrusion D. Poor gag reflex
B
The cranial nerve that innervates the smallest skeletal muscle in the body
A. Oculomotor nerve B. Trigeminal nerve C. Abducens nerve D. Facial nerve
D
Which structure has nothing to do with vertical gaze?
A. Oculomotor nerve B. Trochlear nerve C. Abducens nerve D. Medial longitudinal fasciculus
C
Briskly swiping a wisp of cotton on the limbus of the cornea tests the integrity of the:
A. Opthalmic division of CN V B. Maxillary division of CN V C. Mandibular division of CN V D. Mesencephalic nucleus of CN V
A
The corneal reflex may be absent unilaterally due to a cervical cord lesion because:
A. Fibers descend from the principal nucleus to meet the gracile and cuneate tracts B. Fibers descend as the spinal nucleus and tract to the 2nd cord segment C. Fibers decussate at the level of the pons to join the medial lemniscus D. Fibers descend and hitchhike on ascending fibers from CN XI
B
. Swinging your neurohammer at the patellar tendon activates a reflex arc at dermatome:
A. L3 B. L4 C. L5 D. S1
B
Stroking the sole or lateral aspect of the foot to elicit extensor toe sign stimulates:
A. L3 B. L4 C. L5 D. S1
D
. In the general scheme of sensory nerves, the neuron whose axon decussates is the:
A. 1st order neuron B. 2nd order neuron C. 3rd order neuron D. Granule cell in the cerebral cortex
B
Dorsal root ganglia and trigeminal ganglia neurons:
A. Have axons that cross the midline B. Are pseudounipolar neurons C. Are second order neurons D. Are bipolar neurons
B
The medial lemniscus is seen:
A. Within the basis pontis interspersed among the pontocerebellar fibers B. Beneath the 4th ventricle forming an eponymous colliculus C. At the junction of the basis pontis and tegmentum dorsolaterally D. Ventromedially seated atop the pyramids
C
This test may also assess the integrity of the dorsal column – medial lemniscal pathway:
A. Deep lingering pressure on the sternum B. Briskly touching a wisp of cotton on the limbus of the cornea C. Romberg test D. Libarnes roll
C
The decussation of the spinothalamic tract is at:
A. The level of the spinal cord B. 1-2 segments above the entry of the dorsal root ganglia fibers C. 1-2 segments below the entry of the dorsal root ganglia fibers D. AOTA
D
The decussation of the dorsal column – medial lemniscal pathway is at the level of:
A. The cervicomedullary junction B. The 2nd cervical cord C. 2 cord segments above or below the entry of the spinal nerve root D. The rostral medulla
D
After emanating from the internal capsules, the electrical signals that represent the superior halves of a visualized object travel within the:
A. Superior optic radiations B. Corona radiate C. Inferior optic radiations D. Corpus callosum
C
Which of the following is NOT one of the 4 signs seen in Gerstmann syndrome?
A. Agraphia B. Alexia C. Right-left confusion D. Acalculia E. Finger agnosia
B
“This exam is so ‘waleykomasagutanpagodnakowpowz’” – is an example of:
A. Global aphasia B. Autocorrect error C. Conduction aphasia D. Neologism
D
Reading a quote attributed to Yoda or Morgan Freeman will activate this area in your brain either in your own voice or in their’s.
A. Supramarginal gyrus B. Lingual gyrus C. Angular gyrus D. Fusiform gyrus
A
“Raedning this sentence is meda pssobile” by the integrity of the:
A. Supramarginal gyrus B. Lingual gyrus C. Angular gyrus D. Fusiform gyrus
D
Alexia with or without agraphia results from damage to this structure:
A. Supramarginal gyrus B. Lingual gyrus C. Angular gyrus D. Fusiform gyrus
C
Planning a romantic getaway with precise timing of roses and a string quartet requires the:
A. Frontal lobe B. Temporal lobe C. Insula D. Parietal lobe
A
When faced with a difficult multiple choice question you know completely nothing about, you would rely on which structure to “choose the best answer”?
A. Orbitofrontal cortex B. Anterior cingulate cortex C. Both A & B D. Neither A nor B
C
The association cortex of all other association cortices
A. Supramarginal gyrus B. Lingual gyrus C. Angular gyrus D. Fusiform gyrus
C
Happiness is a choice. Becoming a doctor is a decision. This part of your brain is at work:
A. Hippocampus B. Amygdala C. Ventral tegementum D. Prefrontal cortex
D
Which of the following manifestations is not expected in a disorder of the corticospinal tract?
A. Spastic paralysis B. Enhanced tendon reflexes C. Denervation atrophy of muscles D. Babinski sign E. Weakness of muscle groups rather than individual muscles
C
Which of the following anatomical structures is not part of the upper motor neuron?
A. Neuronal body in the precentral gyrus B. Alpha motor neurons in the anterior horn of the spinal cord C. Corticospinal axons in the lateral funiculus of the spinal cord D. Axons from the primary motor cortex that decussate at the medullary pyramids E. Axons from the primary motor cortex that do not decussate at the medullary pyramids
B