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Questions and Answers
What is the function of muscle spindles?
What is the function of muscle spindles?
- To detect changes in muscle length (correct)
- To cause muscle contraction
- To detect changes in muscle tension
- To maintain muscle strength
What do group Ia afferent fibers detect?
What do group Ia afferent fibers detect?
- The number of muscle fibers
- The velocity of length change (correct)
- The tension in the muscle
- The length of the muscle fiber
What is the role of α motoneurons in muscle spindle reflexes?
What is the role of α motoneurons in muscle spindle reflexes?
- To innervate extrafusal fibers in the homonymous muscle (correct)
- To detect changes in muscle length
- To maintain muscle spindle sensitivity during contraction
- To stimulate group Ia afferent fibers
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