A)Has a polysynaptic reflex arc.
B)Acts to maintain a constant level of tension in the muscle.
C)Is initiated by a receptor that lies in series with the extrafusal fibers.
D)Has its sensitivity controlled by the gamma motor neuron system.

A)Large α motor neurons are recruited before small ones.
B)Large and small α motor neurons are recruited simultaneously.
C)α and $\gamma$ motor neurons are activated simultaneously during a movement.
D)α motor neurons are activated before $\gamma$ motor neurons during a movement.
E)Small motor neurons are more excitable than are large motor neurons.

A)A wave of inhibited Purkinje cells in line with the parallel fiber beam.
B)Waves of excited Purkinje cells that flank the parallel fiber beam.
C)A wave of excited basket and stellate cells in line with the parallel fiber beam.
D)Waves of excited basket and stellate cells that flank the parallel fiber beam.
E)Complex spikes in Purkinje cells in line with the parallel fiber beam.