Extrapyramidal rigidity is characterized by
A) sustained contraction of extensor muscles with extension of legs, arched neck, and clenched teeth.
B) sustained contraction of flexor muscles, with hyperflexion of the arms and legs.
C) sustained spasticity and rhythmic oscillation of involuntary muscle contraction.
D) resistance to passive movement of flexor and extensor muscles in all directions.
Correct Answer:
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