raise the hairs at the back of the neck

题目

raise the hairs at the back of the neck
这是一句习语吗?
具体意思是什么呢?
整个语境是这样的，如果真的是吓得汗毛直竖有点不通呀
In September it will also play host to 4,000 athletes with disabilities,in the Paralympics.There are sure to be moments that raise the hairs at the back of the neck.With a bit of good fortune,one such moment could come on the first weekend of competition,when in a spanking new 18,000-seat basketball arena in west Beijing China’s men are due to take on the mighty United States.

答案

（吓得）全身汗毛直竖
这里是激动得汗毛直竖,哈哈