The jaw jerk reflex can be classified as a dynamic stretch reflex. As with most other reflexes, the response to the stimulus is monosynaptic, with sensory neurons of the trigeminal mesencephalic nucleus sending axons to the trigeminal motor nucleus, which in turn innervates the masseter.
U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition: Cumulative Trauma Disorders. Harmful and painful condition caused by overuse or overexertion of some part of the musculoskeletal system, often resulting from work-related physical activities. It is characterized by inflammation, pain, or dysfunction of the involved joints, bones, ligaments, and nerves.
In physical medicine, major trauma is injury or damage to a biological organism caused by physical harm from an external source. Major trauma is also injury that can potentially lead to serious long-term outcomes like chronic pain. A traumatic injury is an injury caused by external force, but which does not rise to the level of major trauma. Traumatic injuries are distinguished from other causes of injury, such as iatrogenic injuries.