Whiplash
Whiplash is the common name for neck sprains, such as those caused by hyper extension/flexion injury to the cervical, thoracic or lumbar spines. The injury is referred to as "whiplash" due to the neck or back being thrown forwards and/or backwards at a rapid speed. This may cause the fibres of the neck muscles to tear, resulting in pain and often a decreased range of movement.
Whiplash is commonly associated with motor vehicle accidents, usually when the vehicle has been hit in the rear, however the injury can be sustained in many other ways.