In a muscle spindle receptor, which fiber is responsible for the dynamic response?
A)Extrafusal muscle fiber
B)Static nuclear bag fiber
C)Nuclear chain fiber
D)Dynamic nuclear bag fiber

Question

Quizplus · Accepted Answer

The dynamic nuclear bag fiber is responsible for the dynamic response in a muscle spindle receptor. This fiber is sensitive to the rate of change in muscle length and provides feedback on the speed of muscle stretch.

In a Muscle Spindle Receptor, Which Fiber Is Responsible for the Dynamic