9433683
Description
Quiz by Med Student , updated more than 1 year ago
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Created by Med Student
almost 7 years ago
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Question 1
Question
Regarding the function of the cerebral hemispheres:
Answer
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the parietal lobes are involved in pain perceptions
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the frontal areas are involved in auditory perception
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damage to the temporal lobes can cause failure of object recognition
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the right parietal lobe is important for speech comprehension
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a, and b
Question 2
Question
Regarding speech:
Answer
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In left-handed people the faculty of speech is mainly located in the right hemisphere
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Individuals affected by Broca’s aphasia are able to speak only with difficulty
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In right-handed people the faculty of speech is mainly located in the left hemisphere
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An individual with Broca’s aphasia will have paralysis of the lips and tongue
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Wernike’s aphasia results from damage to the frontal speech area
Question 3
Question
Regarding the electroencephalogram (EEG):
Answer
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the normal EEG of an awake person is dominated by alpha waves
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during deep sleep the EEG is always dominated by delta waves
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the presence of theta waves in the EEG of an awake child is indicative of cerebral pathology
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the EEG can be used to monitor the bioelectrical activity of the brain
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none of the above
Question 4
Question
Regarding sleep:
Answer
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reflects the intrinsic circadian rhythm of the brain
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slow wave sleep is associated with rapid eye movements
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young adults need less sleep than elderly individuals
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during normal sleep the secretion of growth hormone is decreased
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women need less sleep than men
Question 5
Question
The dorsal column of the spinal cord conveys the following sensations:
Answer
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pain
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temperature
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vibration
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propioception
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c and d
Question 6
Question
What regions of the brain are involved in emotional reactions?
Answer
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hypothalamus
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cerebral cortex
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thalamus
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limbic system
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a and d
Question 7
Question
At what level the section of the spinal cord causes sudden death?
Answer
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I thoracic segment
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I-II cervical segment
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IV lumbar segment
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VIII thoracic segment
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I lumbar segment
Question 8
Question
Which are the functions of the brain stem?
Answer
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control of respiration
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control of cardiovascular system
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control of gastrointestinal system
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control of micturition
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a, b and c
Question 9
Question
The primary motor cortex, Broca's area, and the premotor area are located in which lobe?
Answer
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frontal
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parietal
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temporal
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occipital
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prefrontal
Question 10
Question
The medulla oblongata has centers for the following:
Answer
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vasomotor
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respiratory
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emesis and coughing
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sneezing
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all of the above
Question 11
Question
Lesions of which of the following nuclei cause hypothalamic obesity:
Answer
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ventromedial nucleus
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dorsomedial nucleus
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suprachiasmatic nucleus
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supraoptic nucleus
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paraventricular nucleus
Question 12
Question
Loss of fear and emotion is often observed in the lesion at:
Answer
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septal nucleus
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thalamus
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amygdaloidal nucleus
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sensory cortex
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basal ganglia
Question 13
Question
The Renshaw cells:
Answer
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receive recurrent collaterals from motor neurons and inhibit other motor neurons in the vicinity
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represent the inhibitory system of cerebellum
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are a major component of muscle spindle
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are present in retina
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are present in the basal ganglia
Question 14
Question
Promoter cortex refers to:
Answer
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some areas anterior to primary motor cortex causing complex coordinate movements like speech, eye movements
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an area of motor cortex responsible for voluntary movements
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an area in temporal cortex
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an area of cerebellum
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c and d
Question 15
Question
Functions of limbic system are all following EXCEPT:
Answer
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olfaction
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gustation
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feeding behaviour
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sexual behaviour
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vision
Question 16
Question
REM is:
Answer
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characterized by delta waves on EEG
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a sound and dreamless sleep
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characterized by total lack of muscular activity
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referred to as paradoxical sleep
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characterized by alpha waves on ECG
Question 17
Question
Sleep deprivation:
Answer
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can cause psychotic episodes
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is associated with sluggishness of thoughts
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makes a person more alert
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has no effect on the individual
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can cause reduction in arterial pressure
Question 18
Question
The naked nerve endings are responsible for the sensation of:
Answer
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pain
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touch
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hearing
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vision
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olfaction
Question 19
Question
In a healthy adult sitting with eyes closed the EEG rhythm registered with electrodes on the occipital lobes is:
Answer
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alpha rhythm
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theta rhythm
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delta rhythm
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beta rhythm
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delta, followed by beta episodes
Question 20
Question
The basal ganglia are primarily concerned with:
Answer
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sensory integration
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short term memory
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central of movement
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neuroendocrine control
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control of body temperature
Question 21
Question
Lesions of which of the following hypothalamic nuclei cause loss of circadian rhythm
Answer
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ventromedial
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dorsomedial
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suprachiasmatic
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supraoptic
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paraventricular
Question 22
Question
Human circadian (24-hour) rhythms:
Answer
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are triggered totally by external (exogenous) factors
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depend more on the integrity of the cerebral cortex than of the hypothalamus
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adapt within 48 hours on changing from day to night shift work
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for melatonin secretion produce high night-time and low day-time levels of the hormone
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for the eosinophil count produce peak values around midday
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