NR507 CNS SENSORY & MOTOR DISORDERS EXAM QUESTIONS AND ANSWERS 2026/2027 LATEST UPDATE

An EMG can help determine if the neuropathy is axonal, demyelinating or both

True

A multi - focal neuropathy is purely a motor neuropathy that is characterized by 

motor deficits in the distribution of single nerve without associated sensory loss 

caused by vasculitis or diabetes

True

There are some very well - known causes of Alzheimer's disease

False

The effect of dementia on the brain results in cerebral cortex swelling

False

Which of the following is true regarding dementia

More than one type of dementia can co - exist in a patient

In Alzheimer's disease , the microtubules become misfolded and tangled which 

alters their function

True

_________ involves an implantable device that directly sends electrical signals to 

the basal ganglia which counteracts the aberrant signaling in Parkinson's disease

Deep brain stimulation

This is involuntary shakiness most noted in the hands in a pill - rolling fashion

Tremor

This is a series of catches or stalls in movement as the extremity is passively 

moved by someone else .

Rigidity

Results from difficulty initiating movement

Bradykinesia

Postural instability is a late feature of PD

True

Parkinson's disease ( PD ) is a movement disorder where the dopamine - producing 

neurons and substantia nigra of the brain undergo neuron _________

degeneration

Which of the following is considered the main treatment strategy for Parkinson's 

disease to increase dopamine signaling in the brain ?

Administer levodopa

Difficulty or unclear speech that is due to plaques in the brain stem

Dysarthria

This is involuntary rapid eye movement due to plaques on the nerves that cause 

eye movements

Nystagmus

This can be caused by plaques along the motor pathways of the spinal cord which 

can affect outbound signals and skeletal muscle control

Intention tremor

Lhermitte's sign is an electric shock that runs down the back and radiates in the 

limbs when bending the neck forward

True

Multiple sclerosis is classified as

a type IV hypersensitivity reaction

Remyelination takes place for a period of time . There is no disability between 

episodes

Relapsing Remitting MS ( RRMS