Question

what kind of contraction is generated when an overly shortened muscle fiber is stimulated?
a weak contraction
none
a hypertwitch
a strong contraction
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Explanation:

When a muscle fiber is overly shortened, the overlap of thick and thin filaments is already at a maximum. Further stimulation cannot generate a strong contraction as there is limited room for cross - bridge formation and sliding. Instead, a weak contraction is generated. A hypertwitch is not a standard term for this situation and when stimulated, there is some response so it's not 'None'.

Answer:

A. weak contraction