The stretch reflex _______________________.
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   protects the muscle against damage and maintains tone of the muscle; | 
   
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   causes a sudden relaxation of extrafusal muscle fibers; | 
   
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   causes a sudden relaxation of intrafusal muscle fibers; | 
   
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   protects the muscle against excessive muscle contraction; | 
   
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   none of the alternatives provided is correct; | 
   INCORRECT - A correct alternative is provided.
   
   
   
   
   
   [Review Part 1 of the tutorial]
   [Review Part 2 (Matching) of the tutorial]