Quiz by Alba Del Rio Serrato, created more than 1 year ago

Quiz on Previous year Quizz 2, created by Alba Del Rio Serrato on 02/12/2017.

1

0

0

	Created by Alba Del Rio Serrato over 6 years ago

Close

Previous year Quizz 2

Please wait - loading…

Question 1 of 18

1

Smell disorders are frequently caused by ...

Select one of the following:

Neurodegenerative diseases
Skull fractures
Side effects of drugs
Diabetes mellitus Type I
Kallmann Syndrome

Explanation

Question 2 of 18

1

The dorsolateral prefrontal cortex

Select one of the following:

is involved in triggering of reflexive saccades
inhibits unwanted reflexive saccades
is the source of a cortico-cerebellar projection modulating the vestibulo-ocular reflex
is rarely affected in neurodegenerative disorders
is intact when antisaccades are directed towards the target

Explanation

Question 3 of 18

1

Dorsal Horn Lamina II neurons

Select one of the following:

are all GABAergic
receive primary afferent input from NGF responsive sensory neurons
process proprioceptive information
process exclusively thermal information from the periphery
are mostly projection neurons

Explanation

Question 4 of 18

1

One of these statements is WRONG: Sensory neurons that respond to noxious heat...

Select one of the following:

also respond well to the chili pepper compound capsaicin
can sometimes also respond to noxious cold
respond to no other type of stimuli
almost always respond to noxious mechanical stimuli
are never polymodal

Explanation

Question 5 of 18

1

The figure below shows the basal aspect of the human brain. Which of the following statements is false?

Select one of the following:

The structure labeled with red arrows contains migrating cells of the rostral migratory stream
The structure labeled with red arrows contains axons of mitral cells
The structure labeled as “Am” is part of the temporal lobe and target of mitral cell axons
The asterisk (*) shows the third ventricle
The black arrow points at the anterior part of the insular cortex

Explanation

Question 6 of 18

1

What afferent fiber type conveys first pinch sensation?

Select one of the following:

Group Ia spindle afferents
Thinly myelinated Aδ-fibers
Large myelinated AB−fibers
Sympathetic efferent fibers
Merkel disk afferent fibers

Explanation

Question 7 of 18

1

Inhibition of reflexive saccades is not:

Select one of the following:

controlled by the dorsolateral prefrontal cortex
dependent on omnipause neurons in the brainstem
visible at the patient’s bedside
investigated by antisaccade testing
dependent on Brodmann’s area 46

Explanation

Question 8 of 18

1

Irrepressible bursts of involuntary saccades ("ocular flutter / opsoclonus")

Select one of the following:

indicate dysfunction of the prepontine paramedian reticular formation
occur with lesions affecting the oculomotor nuclei
indicate dysfunction of omnipause neurons in the nucleus raphe interpositus
occur with lesions affecting Brodmann's area 46 in the prefrontal cortex
are a sign of frontal eye field dysfunction

Explanation

Question 9 of 18

1

Which of the following is wrong? Saccade velocity…

Select one of the following:

May be reduced by centrally acting drugs
Depends on activity of premotor burst neurons in the brainstem reticular formation
Is reduced in neurodegenerative disorders affecting the brainstem reticular formation
Is normal in Parkinson’s disease
Is always accompanied by disorders of saccade accuracy

Explanation

Question 10 of 18

1

Sensory neurons in the Dorsal root ganglia have myelinated and unmyelinated axons. Which class off fiber convey vibrotactile sensation?

Select one of the following:

Unmyelinated C-fibers
γ−motor fibers
Thinly myelinated Aδ-fibers
Large myelinated A-fibers
Sympathetic efferent fibers

Explanation

Question 11 of 18

1

Impaired fixation suppression of the vestibulo-ocular reflex is a sign of

Select one of the following:

Diseases affecting the cerebellar hemispheres
Disturbed vergence
Diseases affecting the cerebellar flocculus and/or dorsal vermis
Lesions affecting the dorsolateral prefrontal cortex
Parkinson’s disease

Explanation

Question 12 of 18

1

Which of the following eye movements changes images of the environment on the fovea?

Select one of the following:

Fixation
Saccades
Vergence
Vestibulo-ocular reflex
Smooth pursuit

Explanation

Question 13 of 18

1

The following structure is not involved in brainstem control of saccades:

Select one of the following:

Nucleus raphe interpositus
Nucleus prepositus hypoglossi
Oculomotor nuclei
Nucleus principalis nervi trigemini
Prepontine paramedian reticular formation

Explanation

Question 14 of 18

1

Which of the following statements is correct?

Select one of the following:

Olfactory loss can be an early sign of Parkinson’s disease.
Olfactory loss is rarely seen in elderly people.
Olfactory loss is commonly associated with brain lesion after stroke.
Olfactory loss is not associated with Huntington’s disease.
Olfactory loss can be an early sign of measles.

Explanation

Question 15 of 18

1

The following sensations are mediated through oral stimuli. What sensations are mediated through neurons with cell bodies in trigeminal ganglion?

Select one of the following:

bitter through caffeine
umami through glutamate
sour through vinegar
hot through capsaicin
sweet through sucrose

Explanation

Question 16 of 18

1

The most frequent causes of olfactory loss in adults are…

Select one of the following:

environmental pollution.
neurodegenerative diseases.
drug abuse.
sinunasal diseases.
head trauma.

Explanation

Question 17 of 18

1

Mature Nerve growth factor

Select one of the following:

is an endogenous mediator of inflammatory pain in growing individuals
can activate p75 to produce hyperalgesia
stimulates mast cell proliferation
activates the sortillin receptor
can kill adult sensory neurons

Explanation

Question 18 of 18

1

The “neural integrator” in the brainstem and cerebellar flocculus

Select one of the following:

Controls the vestibulo-ocular reflex
Controls accuracy of saccades
Transforms a saccade velocity signal into a tonic signal for gaze holding in eccentric positions
Determines saccade velocity by integrating activity of neurons in oculomotor nuclei
Is involved in generating vergence eye movements

Explanation