单语范例（未经PONS编辑处理）
英语
- However, actions controlled by polysynaptic reflex loops are still faster than actions which require perceptual processing.en.wikipedia.org
- While the actions of short-loop reflexes are fixed, polysynaptic reflexes can often be regulated by instruction or prior experience.en.wikipedia.org
- Muscle spindle discharges are sent to the spinal cord through afferent nerve fibers, where they activate monosynaptic and polysynaptic reflex arcs, causing the muscle to contract.en.wikipedia.org
- It can also be used as an example of a polysynaptic reflex when looking at the involvement of inhibitory interneurons to relax the hamstrings.en.wikipedia.org
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英语