The Contraction of Intrafusal Muscle Fibers

Multiple Choice

The contraction of intrafusal muscle fibers

A) Shortens the muscle spindle
B) Is important for the detection of extrafusal muscle relaxation
C) Is stimulated by gamma motor neuron activation
D) Both shortens the muscle spindle and is important for the detection of extrafusal muscle relaxation are correct
E) Both shortens the muscle spindle and is stimulated by gamma motor neuron activation are correct