The exact injury mechanism that causes<unk> injuries is forceful sudden hyperextension followed by hyperflexion of the cervical vertebrae, mainly spraining the nuchal ligament and the Anterior Longitudinal Ligament respectively. A<unk> injury may be the result of impulsive retracting of the spine, mainly the ligament: anterior longitudinal ligament which is stretched or tears, as the head snaps forward and then back again causing a<unk> injury. A<unk> injury from an automobile accident is called a cervical acceleration–deceleration injury. Cadaver studies have shown that as an automobile occupant is hit from behind, the forces from the seat back compress the kyphosis of the thoracic spine, which provides an axial load on the lumbar spine and cervical spine. This forces the cervical spine to deform into an S-shape where the lower cervical spine is forced into a kyphosis while the upper cervical spine maintains its lordosis. As the injury progresses, the whole cervical spine is finally hyper-extended.<unk> may be caused by any motion similar to a rear-end collision in a motor vehicle, such as may take place on a roller coaster or other rides at an amusement park, sports injuries such as skiing accidents, other modes of transportation such as airplane travel, or from being hit, kicked or shaken..<unk> associated disorders sometimes include injury to the cerebrum. In a severe cervical acceleration–deceleration syndrome, a brain injury known as a coup contrecoup injury occurs. A coup contrecoup injury injury occurs as the brain is accelerated into the cranium as the head and neck hyperextend, and is then accelerated into the other side as the head and neck rebound to hyper-flexion or neutral position. "Volunteer studies of experimental, low-velocity rear-end collisions have shown a percentage of subjects to report short-lived symptoms", From this type of research, it has been inferred that<unk> symptoms might not always have any pathological (injury) explanation. However, over the last decade, academic surgeons in the UK and US have sought to unravel the<unk> enigma. A 1000-case, four-year observational study published in 2012 said that the "missing link" in<unk> injuries is the trapezius muscle which may be damaged through eccentric muscle contraction during the<unk> mechanism described above and below. Another study suggested that "shneck pain" was in the nearby supraspinatus muscle and this resulted from a seemingly asymptomatic form of shoulder impingement. Shoulder impingement is commonly asymptomatic and the shoulder may be injured along with the neck in a motor vehicle accident.<unk> due to The Referred Shoulder Impingement Syndrome was successfully treated using conventional treatments for shoulder impingement including anti-inflammatory steroids and non steroids, and by avoiding the overhead position of shoulder impingement during the day and night time. All of this work demonstrates that historically and indeed presently<unk> patients' pain sources may be missed if it is outside of the neck. Hence the pathology in<unk> may have been missed and the treatment ineffective.
Whiplash 
Swayback
Sprain
Post-nasal drip
Tennis injuries
Factitious airs
Laryngospasm
Crossbite