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gland10 t1_j90wqop wrote

Its an actual thing but usually for whiplash in car accident victims. Your skull can sever from your spine internally. Its why people get neck collars when paramedics show up to accidents regardless of severity because it doesn't take much force.

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youwigglewithagiggle t1_j918hxq wrote

And why it's strongly advised for carseats to face backwards until kids are about 4, even if they've technically outgrown the position. Their bones aren't all fused together, which puts them at much greater risk of internal decapitation even without neck wounds!

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liberal_meateater t1_j916n7g wrote

I think it’s called an “Axio-Atlantal” subluxation.
It’s the first vertebrae separating from the base of the skull. Death is instant.

It’s why I wear a HANS device in a race car.

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gland10 t1_j916zzf wrote

Apparently its 70% instantly fatal. You can survive, but the odds that you aren't dead or paralyzed are abysmal.

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