What types of changes do the muscle spindles sense in order to assist in discrimination of position and movement?

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Muscle spindles sense changes in muscle length and velocity in order to assist in discrimination of position and movement. As the muscle length changes, the stretch of the spindle also changes, which activates the sensory nerve fibers in the spindle. The sensory information from these fibers is used by the central nervous system to constantly monitor and adjust muscle tension during movements. Additionally, changes in velocity can provide important information about the direction and speed of movement.

What Types of Changes Do the Muscle Spindles Sense in Order