NAVLE® Question of the day

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March 2, 2023

NAVLE

What is the neuroanatomic cause of extensor rigidity in the forelimbs of a patient with Schiff-Sherrington posture?

A - Damage to thoracic spinocerebellar tracts in superficial white matter

B - Interruption of inhibitory neuron input from lumbar spinal cord

C - Polyradiculoneuritis of peripheral nerve sheaths at cervical intumescence

D - Brachial plexus trauma

E - Subdural white matter compression at C6-T3