Neurology mcq questions with answers for NEET

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Neurology mcq questions with answers

neurology mcq questions with answers are given below. These are some of the most important Biology-neurology mcq with answers to help your crack medical exams like NEET, PGMEE and other medical professionals test. We are planning to provide you neurology mcq pdf as study material that you can download.

Neurology mcq with answers

Q. 1 What proportion of 23,000 genes encoded in human genome are expressed in human nervous system ?
A : ~ one-fourth
B : ~ one-third
C : ~ one-half
D : ~ three-fourth

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~ one-third

Q. 2 Each mature brain is composed of how many neurons ?
A : 10 million
B : 100 million
C : 10 billion
D : 100 billion

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100 billion

Q. 3 Each mature brain is composed of how many synapses ?
A : ~ 1010
B : ~ 1015
C : ~ 1020
D : ~ 1025

~ 1015

Q. 4 Which of the following is a monogenic disorder ?
A : Familial Alzheimer’s disease
B : Frontotemporal dementia
C : Parkinson’s disease
D : All of the above

All of the above

Q. 5 Nissl bodies are composed of ?
A : Mitochondria
B : Endoplasmic reticulum
C : Golgi complex
D : Lysosomes

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Endoplasmic reticulum

Q. 6 Synaptic glomeruli are found in ?
A : Cerebellum
B : Olfactory bulb
C : Lateral geniculate body
D : All of the above

All of the above

Q. 7 What fraction of genes encoded in human genome is expressed in the nervous system ?
A : One-third
B : One-half
C : Two-third
D : Three-fourth

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One-third

Q. 8 Tone is the resistance of a muscle to ?
A : Active stretch
B : Passive stretch
C : Gravitational stretch
D : Anti-gravity stretch

Passive stretch

Q. 9 Increased muscle tone is found in ?
A : Spasticity
B : Rigidity
C : Paratonia
D : All of the above

All of the above

Q. 10 Which of the following about ‘Spasticity’ is false ?
A : Velocity-dependent
B : Sudden release at maximum
C : Affects antigravity muscles
D : None of the above

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None of the above

Q. 11 Which of the following about ‘Rigidity’ is false ?
A : Present throughout range of motion
B : Affects flexors & extensors equally
C : Occurs with extrapyramidal disorders
D : None of the above

None of the above

Q. 12 Which of the following about ‘Paratonia’ is false ?
A : Also called gegenhalten
B : Increased tone varies irregularly
C : Present throughout range of motion
D : None of the above

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None of the above

Q. 13 Which of the following about ‘Paratonia’ is false ?
A : Increased muscle tone
B : Affects flexors & extensors equally
C : Results from disease of frontal lobes
D : None of the above

None of the above

Q. 14 Which of the following about ‘flaccidity’ is false ?
A : Weakness
B : Decreased tone
C : Disorder of motor unit
D : None of the above

None of the above

Q. 15 Which of the following is false about fasciculation ?
A : Visible twitch
B : Palpable twitch
C : Spontaneous discharge of a motor unit
D : None of the above

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None of the above

Q. 16 Which of the following is false about upper motor neuron weakness ?
A : Proximal muscle groups affected more than distal
B : Axial movements spared
C : Affects ability to perform rapid repetitive movements
D : Normal movement rhythmicity is maintained

Proximal muscle groups affected more than distal

Q. 17 Upper motor neurons have their cell bodies in which layer of primary motor cortex ?
A : Layer III
B : Layer IV
C : Layer V
D : Layer VI

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Layer V

Q. 18 What proportion of pyramidal axons do not decussate and remain ipsilateral ?
A : 2 to 10 %
B : 5 to 15 %
C : 10 to 30 %
D : 20 to 35 %

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10 to 30 %

Q. 19 Pyramidal axons innervate most densely which of the following lower motor neurons ?
A : Of hand muscles
B : Of foot muscles
C : Of axial muscles
D : Of face muscles

Of hand muscles

Q. 20 Descending ventromedial bulbospinal pathways include ?
A : Tectospinal pathway
B : Vestibulospinal pathway
C : Reticulospinal pathway
D : All of the above

All of the above

Q. 21 All of the following are part of descending ventromedial bulbospinal pathways except ?
A : Tectospinal pathway
B : Vestibulospinal pathway
C : Reticulospinal pathway
D : Rubrospinal pathway

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Rubrospinal pathway

Q. 22 Which of the following is false about lower motor neuron weakness ?
A : Due to loss of  neurons
B : Due to loss of  motor neurons
C : Absent tendon stretch reflex suggests involvement of spindle afferent fibers
D : Fasciculations signify anterior horn cell disease

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Due to loss of  motor neurons

Q. 23 Which of the following is false about motor neurons ?
A : motor neurons innervate extrafusal muscle fibers
B : motor neurons innervate intrafusal muscle fibers
C :  motor neuron receives direct excitatory input from corticomotoneurons & primary muscle spindle afferents
D :  motor neurons receive direct excitation from Renshaw cell interneurons

 motor neurons receive direct excitation from Renshaw cell interneurons

Q. 24 Which of the following is false about myopathic weakness ?
A : Due to disorders of muscle fibers
B : Due to defect in neuromuscular junctions
C : In EMG, size of each motor unit action potential is reduced
D : Distribution of weakness is distal

Distribution of weakness is distal

Q. 25 “Pure motor” hemiparesis of the face, arm, or leg is due to a lesion in ?
A : Posterior limb of internal capsule
B : Cerebral peduncle
C : Upper ponsNeurology 645 MCQ’s FOR MEDICAL PROFESSIONALS BY PROF. AJAY MATHUR MCQ’s FOR MEDICAL MCQ’s FOR MEDICAL PROFESSIONALS PROFESSIONALS Cardiology 645
D : Any of the above

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Any of the above

Q. 26 Paraparesis can arise due to ?
A : Anterior horn cell disorders
B : Cauda equina syndrome
C : Peripheral neuropathies
D : Any of the above

Any of the above

Q. 27 Acute paraparesis can be due to which of the following diseases of cerebral hemispheres ?
A : Superior sagittal sinus thrombosis
B : Cortical venous thrombosis
C : Acute hydrocephalus
D : Any of the above

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D : Any of the above

Q. 28 Cerebral cortex of human brain contains approximately how many neurons ?
A : 5 billion
B : 10 billion
C : 20 billion
D : 50 billion

20 billion

Q. 29 Cerebral cortex of human brain has an area of ?
A : 0.5 m2
B : 1.5 m2
C : 2.5 m2
D : 3.5 m2

2.5 m2

Q. 30 Primary sensory & motor areas constitute what percentage of cerebral cortex ?
A : 10 %
B : 15 %
C : 20 %
D : 25 %

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10 %

Q. 31 A language disturbance occurring after a right hemisphere lesion in a right hander is called ?
A : Ipsilateral aphasia
B : Sequence aphasia
C : Crossed aphasia
D : Retro aphasia

Crossed aphasia

Q. 32 Anomia refers to ?
A : Naming with the wrong word
B : Deficit of naming
C : Naming a different object
D : Any of the above

Deficit of naming

Q. 33 Anomic aphasia is the single most common language disturbance seen in ?
A : Head trauma
B : Metabolic encephalopathy
C : Alzheimer’s disease
D : All of the above

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All of the above

Q. 34 Inability to read aloud or comprehend single words and simple sentences is called ?
A : Alexia
B : Agraphia
C : Anomia
D : Paraphasia

Alexia

Q. 35 Which of the following is impaired in Wernicke’s aphasia ?
A : Comprehension
B : Repetition of spoken language
C : Naming
D : All of the above

All of the above

Q. 36 Which of the following is preserved in Broca’s aphasia ?
A : Comprehension
B : Repetition of spoken language
C : Naming
D : Fluency

Comprehension

Q. 37 Fluency is severely impaired in ?
A : Aphemia
B : Alexia
C : Anomia
D : Wernicke’s aphasia

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Aphemia

Q. 38 Apraxia refers to ?
A : Repetition of spoken language
B : Disorder of initiating skilled / learned movement
C : Impaired comprehension
D : No purposeful speech646 MCQ’s FOR MEDICAL PROFESSIONALS BY PROF. AJAY MATHUR Neurology

Disorder of initiating skilled / learned movement

Q. 39 In apraxia, complex motor deficit is attributed to ?
A : Pyramidal dysfunction
B : Extrapyramidal dysfunction
C : Cerebellar dysfunction
D : None of the above

None of the above

Q. 40 Gerstmann’s Syndrome includes all except ?
A : Acalculia
B : Aphasia
C : Right-left confusion
D : Finger anomia

Aphasia

Q. 41 In isolated Gerstmann’s syndrome, the damage is in ?
A : Superior parietal lobule in dominant hemisphere
B : Inferior parietal lobule in dominant hemisphere
C : Superior parietal lobule in non-dominant hemisphere
D : Inferior parietal lobule in non-dominant hemisphere

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Inferior parietal lobule in dominant hemisphere

Q. 42 Paratonic rigidity or gegenhalten results from disease of ?
A : Frontal lobes
B : Temporal lobes
C : Parietal lobes
D : Occipital lobes

Frontal lobes

Q. 43 Statements uttered in a monotone are termed ?
A : Primary progressive aphasia (PPA)
B : Anomic aphasia
C : Aprosodia
D : Prosopagnosia

Aprosodia

Q. 44 Which symptom can occur in Bálint’s syndrome ?
A : Optic ataxia
B : Oculomotor apaxia
C : Simultagnosia
D : All of the above

All of the above

Q. 45 Bálint’s syndrome may result from ?
A : Hypoglycemia
B : Sagittal sinus thrombosis
C : Atypical forms of Alzheimer’s disease
D : All of the above

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All of the above

Q. 46 Face recognition deficit is termed as ?
A : Primary progressive aphasia (PPA)
B : Visual object agnosia
C : Aprosodia
D : Prosopagnosia

Prosopagnosia

Q. 47 Cause of transient global amnesia is ?
A : Migraine
B : Temporal lobe seizures
C : TIA in the posterior cerebral territory
D : All of the above

All of the above

Q. 48 What proportion of all human cerebral cortex is located in the frontal lobes ?
A : One – fourth
B : One – third
C : One – half
D : Three – fourth

One – third

Q. 49 Characteristics of dystonia include all except ?
A : Ill sustained muscle contractions
B : Repetitive twisting movements
C : Abnormal posture
D : Often has a genetic basis

Ill sustained muscle contractions

Q. 50 Freezing gait is a feature of ?
A : Progressive supranuclear palsy
B : Multiple system atrophy
C : Corticobasal degeneration
D : All of the above

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All of the above

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