Here's The Answer

Table 11-3

Change in Discharge Rates of Muscle Receptors
During Various Activities

Activity

Primary Spindle

Secondary Spindle

Golgi Tendon Organ

Passive stretch Increase because length increases Increase because length increases Increase because tension increases; small change because tension is applied
Isometric contraction No change because length doesn't change No change because length doesn't change Increase because tension increases; large change because tension is developed
Isotonic contraction Decrease because length decreases Decrease because length decreases No change because tension doesn't change
Lengthening contraction Increase because length increases Increase because length increases Increase because tension increases; large change because tension is developed and applied

Upated on ... July 3, 2011