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English(EN) Why Does Your ‘Funny Bone’ Actually Feel Like An Electric Shock? An Evolutionary Biologist Explains

进化限制解释了“笑神经”的触电感觉

作者 PulseAugur 编辑部 · [1 个来源] ·

俗称撞到“笑神经”的感觉并非由骨骼引起，而是由肘部的尺神经引起。这条从手延伸到手臂的神经暴露在肘管这个通道中，几乎没有保护。当这条神经受到撞击时，它会向大脑发送电信号，大脑将其解读为源自手指，从而产生特有的触电般的震动和暂时麻木感。这种脆弱性是进化限制的结果，因为四足动物前肢的基本神经通路在脊椎动物早期就已确立，并且在肢体多样化后基本保持不变。 AI

排序理由 用进化和生理细节解释生物现象。[lever_c_demoted from research: ic=1 ai=0.0]

在 Forbes — Innovation 阅读 →

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进化限制解释了“笑神经”的触电感觉

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用进化和生理细节解释生物现象。[lever_c_demoted from research: ic=1 ai=0.0]
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报道来源 [1]

  1. Forbes — Innovation TIER_1 English(EN) · Scott Travers, Contributor ·

    为什么你的‘笑神经’感觉像触电？一位进化生物学家解释

    Why does hitting your funny bone feel like an electric shock rather than a bruise? An evolutionary biologist explains the ulnar nerve's ancient design flaw.

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