When attacked, a lizard releases its tail either by direct trauma or sometimes before it is even touched. (discovermagazine.com)
The absence of direct trauma has left our higher brain functions, like judgment, self - awareness and compassion unimpaired. (globalpossibilities.org)
If the spine sustains direct trauma or is twisted in an unnatural manner, the nerves may become stretched, damaged or even severed. (orangecountyseriousinjuries.com)