NR 507 – EDAPT Week 7: Central Nervous System Sensory & Motor Disorders | Complete -Item Q&A with Rationales

NR 507 – EDAPT Week 7: Central Nervous System
Sensory & Motor Disorders | Complete -Item Q&A with
Rationales

,NR 507 – Week 7 CNS Sensory & Motor Disorders (1–30)


Question 1
A patient presents with sudden right-sided weakness and expressive aphasia.
Most likely affected artery?
A. Right MCA
B. Left MCA
C. Right ACA
D. Basilar artery
Answer-: B
Rationale: Left MCA supplies Broca’s area and contralateral motor cortex → right-
sided weakness + expressive aphasia.


Question 2
Primary pathophysiology of multiple sclerosis?
A. Peripheral demyelination
B. Autoimmune CNS demyelination
C. Dopamine depletion
D. Motor neuron degeneration
Answer-: B


Question 3
Resting tremor, bradykinesia, rigidity indicate deficiency of:

,A. GABA
B. Acetylcholine
C. Dopamine
D. Serotonin
Answer-: C


Question 4
Myasthenia gravis is caused by antibodies against:
A. Presynaptic calcium channels
B. Acetylcholine receptors
C. Dopamine receptors
D. Sodium channels
Answer-: B


Question 5
Which finding suggests upper motor neuron lesion?
A. Muscle atrophy
B. Fasciculations
C. Hyperreflexia
D. Flaccid paralysis
Answer-: C


Question 6
Seizure originating in one hemisphere without loss of awareness:
A. Generalized tonic-clonic
B. Absence
C. Focal aware seizure
D. Atonic

, Answer-: C


Question 7
Which neurotransmitter imbalance contributes to Huntington disease?
A. Excess dopamine
B. Decreased GABA
C. Excess serotonin
D. Decreased acetylcholine
Answer-: B


Question 8
Most common cause of ischemic stroke?
A. Hemorrhage
B. Embolism from atrial fibrillation
C. Vasculitis
D. Trauma
Answer-: B


Question 9
Which symptom is classic for Guillain-Barré syndrome?
A. Ascending paralysis
B. Descending paralysis
C. Resting tremor
D. Diplopia only
Answer-: A


Question 10