how the spinal cord can get trapped
The previous slide showed the possible effects of bending over and this close up explains in a little more detail what can happen. Here the herniated disc is pushed into the spinal cord causing, at a minimum, extreme pain and as a maximum, paralysis of certain body functions.
There is a popular misconception that the disc can be "put back" by manipulation or operation but I have recently, (August 2017), learned from the top spinal specialist at Kettering hospital that in fact, the body's natural defence mechanism springs into action as it recognises the slipped portion of the disc as an invader. It therefore attacks the disc and literally eats it away. As discs have no bloody supple it doesn't grow back and you lose that portion forever.