John received a score of 6 on the Glascow Coma Scale which is classified as a severe brain injury. When John was medically stable he was classified as being in Stage 1 coma measured by the Ranchos Los Amigos Coma Scale meaning no response. John experienced a severe traumatic brain injury, the impact caused a coup (initial blow to the brain) and contrecoup (second blow to back of the brain) motion of the brain. This impact is caused by a combination of acceleration and deceleration forces. During the impact your brain is squeezed inside of the skull sending shock waves throughout your brain. Nerve fibers are composed of a neuron body and an axon. Nerves function by sending signals from the neuron body down the axon to other nerves. When acceleration
