which receptor is responsible for monitoring the rate of muscle stretch ?
Correct answer: A. Nuclear bag intrafusal fibers
- A. Nuclear bag intrafusal fibers
- B. Nuclear chain
- C. Golgi tendon organ
- D. Pacinium corpuscles
Explanation
The primary endings of nuclear bag intrafusal fibres are especially sensitive to the rate of muscle stretch, producing the dynamic component of the stretch reflex. Nuclear chain fibres mainly signal steady muscle length, while the Golgi tendon organ detects tension.
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