Higher Nervous Functions- Physiology- 2nd Year- PMU

Descrição

Higher Nervous Functions- Physiology- 2nd Year- PMU
Med Student
Quiz por Med Student , atualizado more than 1 year ago
Med Student
Criado por Med Student mais de 7 anos atrás
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25

Resumo de Recurso

Questão 1

Questão
Regarding the function of the cerebral hemispheres:
Responda
  • the parietal lobes are involved in pain perceptions
  • the frontal areas are involved in auditory perception
  • damage to the temporal lobes can cause failure of object recognition
  • the right parietal lobe is important for speech comprehension
  • a, and b

Questão 2

Questão
Regarding speech:
Responda
  • In left-handed people the faculty of speech is mainly located in the right hemisphere
  • Individuals affected by Broca’s aphasia are able to speak only with difficulty
  • In right-handed people the faculty of speech is mainly located in the left hemisphere
  • An individual with Broca’s aphasia will have paralysis of the lips and tongue
  • Wernike’s aphasia results from damage to the frontal speech area

Questão 3

Questão
Regarding the electroencephalogram (EEG):
Responda
  • the normal EEG of an awake person is dominated by alpha waves
  • during deep sleep the EEG is always dominated by delta waves
  • the presence of theta waves in the EEG of an awake child is indicative of cerebral pathology
  • the EEG can be used to monitor the bioelectrical activity of the brain
  • none of the above

Questão 4

Questão
Regarding sleep:
Responda
  • reflects the intrinsic circadian rhythm of the brain
  • slow wave sleep is associated with rapid eye movements
  • young adults need less sleep than elderly individuals
  • during normal sleep the secretion of growth hormone is decreased
  • women need less sleep than men

Questão 5

Questão
The dorsal column of the spinal cord conveys the following sensations:
Responda
  • pain
  • temperature
  • vibration
  • propioception
  • c and d

Questão 6

Questão
What regions of the brain are involved in emotional reactions?
Responda
  • hypothalamus
  • cerebral cortex
  • thalamus
  • limbic system
  • a and d

Questão 7

Questão
At what level the section of the spinal cord causes sudden death?
Responda
  • I thoracic segment
  • I-II cervical segment
  • IV lumbar segment
  • VIII thoracic segment
  • I lumbar segment

Questão 8

Questão
Which are the functions of the brain stem?
Responda
  • control of respiration
  • control of cardiovascular system
  • control of gastrointestinal system
  • control of micturition
  • a, b and c

Questão 9

Questão
The primary motor cortex, Broca's area, and the premotor area are located in which lobe?
Responda
  • frontal
  • parietal
  • temporal
  • occipital
  • prefrontal

Questão 10

Questão
The medulla oblongata has centers for the following:
Responda
  • vasomotor
  • respiratory
  • emesis and coughing
  • sneezing
  • all of the above

Questão 11

Questão
Lesions of which of the following nuclei cause hypothalamic obesity:
Responda
  • ventromedial nucleus
  • dorsomedial nucleus
  • suprachiasmatic nucleus
  • supraoptic nucleus
  • paraventricular nucleus

Questão 12

Questão
Loss of fear and emotion is often observed in the lesion at:
Responda
  • septal nucleus
  • thalamus
  • amygdaloidal nucleus
  • sensory cortex
  • basal ganglia

Questão 13

Questão
The Renshaw cells:
Responda
  • receive recurrent collaterals from motor neurons and inhibit other motor neurons in the vicinity
  • represent the inhibitory system of cerebellum
  • are a major component of muscle spindle
  • are present in retina
  • are present in the basal ganglia

Questão 14

Questão
Promoter cortex refers to:
Responda
  • some areas anterior to primary motor cortex causing complex coordinate movements like speech, eye movements
  • an area of motor cortex responsible for voluntary movements
  • an area in temporal cortex
  • an area of cerebellum
  • c and d

Questão 15

Questão
Functions of limbic system are all following EXCEPT:
Responda
  • olfaction
  • gustation
  • feeding behaviour
  • sexual behaviour
  • vision

Questão 16

Questão
REM is:
Responda
  • characterized by delta waves on EEG
  • a sound and dreamless sleep
  • characterized by total lack of muscular activity
  • referred to as paradoxical sleep
  • characterized by alpha waves on ECG

Questão 17

Questão
Sleep deprivation:
Responda
  • can cause psychotic episodes
  • is associated with sluggishness of thoughts
  • makes a person more alert
  • has no effect on the individual
  • can cause reduction in arterial pressure

Questão 18

Questão
The naked nerve endings are responsible for the sensation of:
Responda
  • pain
  • touch
  • hearing
  • vision
  • olfaction

Questão 19

Questão
In a healthy adult sitting with eyes closed the EEG rhythm registered with electrodes on the occipital lobes is:
Responda
  • alpha rhythm
  • theta rhythm
  • delta rhythm
  • beta rhythm
  • delta, followed by beta episodes

Questão 20

Questão
The basal ganglia are primarily concerned with:
Responda
  • sensory integration
  • short term memory
  • central of movement
  • neuroendocrine control
  • control of body temperature

Questão 21

Questão
Lesions of which of the following hypothalamic nuclei cause loss of circadian rhythm
Responda
  • ventromedial
  • dorsomedial
  • suprachiasmatic
  • supraoptic
  • paraventricular

Questão 22

Questão
Human circadian (24-hour) rhythms:
Responda
  • are triggered totally by external (exogenous) factors
  • depend more on the integrity of the cerebral cortex than of the hypothalamus
  • adapt within 48 hours on changing from day to night shift work
  • for melatonin secretion produce high night-time and low day-time levels of the hormone
  • for the eosinophil count produce peak values around midday

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