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Higher Nervous Functions- Physiology- 2nd Year- PMU
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Questions in this quiz (22)
1Regarding the function of the cerebral hemispheres:
- Athe parietal lobes are involved in pain perceptions
- Bthe frontal areas are involved in auditory perception
- Cdamage to the temporal lobes can cause failure of object recognition
- Dthe right parietal lobe is important for speech comprehension
- Ea, and b
2Regarding speech:
- AIn left-handed people the faculty of speech is mainly located in the right hemisphere
- BIndividuals affected by Broca’s aphasia are able to speak only with difficulty
- CIn right-handed people the faculty of speech is mainly located in the left hemisphere
- DAn individual with Broca’s aphasia will have paralysis of the lips and tongue
- EWernike’s aphasia results from damage to the frontal speech area
3Regarding the electroencephalogram (EEG):
- Athe normal EEG of an awake person is dominated by alpha waves
- Bduring deep sleep the EEG is always dominated by delta waves
- Cthe presence of theta waves in the EEG of an awake child is indicative of cerebral pathology
- Dthe EEG can be used to monitor the bioelectrical activity of the brain
- Enone of the above
4Regarding sleep:
- Areflects the intrinsic circadian rhythm of the brain
- Bslow wave sleep is associated with rapid eye movements
- Cyoung adults need less sleep than elderly individuals
- Dduring normal sleep the secretion of growth hormone is decreased
- Ewomen need less sleep than men
5The dorsal column of the spinal cord conveys the following sensations:
- Apain
- Btemperature
- Cvibration
- Dpropioception
- Ec and d
6What regions of the brain are involved in emotional reactions?
- Ahypothalamus
- Bcerebral cortex
- Cthalamus
- Dlimbic system
- Ea and d
7At what level the section of the spinal cord causes sudden death?
- AI thoracic segment
- BI-II cervical segment
- CIV lumbar segment
- DVIII thoracic segment
- EI lumbar segment
8Which are the functions of the brain stem?
- Acontrol of respiration
- Bcontrol of cardiovascular system
- Ccontrol of gastrointestinal system
- Dcontrol of micturition
- Ea, b and c
9The primary motor cortex, Broca's area, and the premotor area are located in which lobe?
- Afrontal
- Bparietal
- Ctemporal
- Doccipital
- Eprefrontal
10The medulla oblongata has centers for the following:
- Avasomotor
- Brespiratory
- Cemesis and coughing
- Dsneezing
- Eall of the above
11Lesions of which of the following nuclei cause hypothalamic obesity:
- Aventromedial nucleus
- Bdorsomedial nucleus
- Csuprachiasmatic nucleus
- Dsupraoptic nucleus
- Eparaventricular nucleus
12Loss of fear and emotion is often observed in the lesion at:
- Aseptal nucleus
- Bthalamus
- Camygdaloidal nucleus
- Dsensory cortex
- Ebasal ganglia
13The Renshaw cells:
- Areceive recurrent collaterals from motor neurons and inhibit other motor neurons in the vicinity
- Brepresent the inhibitory system of cerebellum
- Care a major component of muscle spindle
- Dare present in retina
- Eare present in the basal ganglia
14Promoter cortex refers to:
- Asome areas anterior to primary motor cortex causing complex coordinate movements like speech, eye movements
- Ban area of motor cortex responsible for voluntary movements
- Can area in temporal cortex
- Dan area of cerebellum
- Ec and d
15Functions of limbic system are all following EXCEPT:
- Aolfaction
- Bgustation
- Cfeeding behaviour
- Dsexual behaviour
- Evision
16REM is:
- Acharacterized by delta waves on EEG
- Ba sound and dreamless sleep
- Ccharacterized by total lack of muscular activity
- Dreferred to as paradoxical sleep
- Echaracterized by alpha waves on ECG
17Sleep deprivation:
- Acan cause psychotic episodes
- Bis associated with sluggishness of thoughts
- Cmakes a person more alert
- Dhas no effect on the individual
- Ecan cause reduction in arterial pressure
18The naked nerve endings are responsible for the sensation of:
- Apain
- Btouch
- Chearing
- Dvision
- Eolfaction
19In a healthy adult sitting with eyes closed the EEG rhythm registered with electrodes on the occipital lobes is:
- Aalpha rhythm
- Btheta rhythm
- Cdelta rhythm
- Dbeta rhythm
- Edelta, followed by beta episodes
20The basal ganglia are primarily concerned with:
- Asensory integration
- Bshort term memory
- Ccentral of movement
- Dneuroendocrine control
- Econtrol of body temperature
21Lesions of which of the following hypothalamic nuclei cause loss of circadian rhythm
- Aventromedial
- Bdorsomedial
- Csuprachiasmatic
- Dsupraoptic
- Eparaventricular
22Human circadian (24-hour) rhythms:
- Aare triggered totally by external (exogenous) factors
- Bdepend more on the integrity of the cerebral cortex than of the hypothalamus
- Cadapt within 48 hours on changing from day to night shift work
- Dfor melatonin secretion produce high night-time and low day-time levels of the hormone
- Efor the eosinophil count produce peak values around midday
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- Higher Nervous Functions- Physiology- 2nd Year- PMU
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- Med Student
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