In fact, Helmholtz discovered it took longer for people to respond to a shock in the toe than to one at the base of the spine because the path to the brain was longer.

事实上，Helmholtz发现人对于脚趾部位电击的反应时间比在脊柱部位要长，因为通往大脑的路途长一些。

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The sacrum is the bone that is shaped like an upside-down triangle at the base of the spine.

骶骨位于脊椎底端，是一个向上的三角形。

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Then she remembers his most vulnerable spot is not the base of his spine.

她忽然想起了杰克最易受攻击的位置了，不是脊柱。

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Ms Chapman had been suffering from numbness in her legs and her GP alerted her to cauda equina syndrome, where pressure on the base of the spine affects major nerves.

BBC: Cauda equina syndrome misdiagnosis woman payout

All that puts the F12's dynamic point of leverage, its polar moment chakra, if you will, almost precisely at the base of the driver's spine.

WSJ: 2012 Ferrari F12 Berlinetta Review: Tech That Makes Drivers Into Gods | Rumble Seat by Dan Neil