backward fall injury, strikes impact fracture on the back and contra-coup, opposite injury to the brain because the brain is surrounded by spinal fluid, by fluid. the brain doesn't fall as fast as the skull bone and the front of the skull strikes the brain. causes brain damage, subdural hemorrhage and impact on the orbital bone, they are the thinnest bone in the body, the brain striking the front of the head causes the fracture over the eye. that is typical counter-coup falling injury because then you get an impact injury and 180-degree opposite damage to the brain. >> carley: you know what people are thinking when they hear this, there were a lot of fractures to the head, a fall 20