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.
Canine Head Trauma. Head trauma is a blunt or penetrating injury occurring to the head. In dogs it may occur due to a variety of causes, the most common of which is a motor vehicle accident. Other causes include blunt trauma such as being hit by bats or swings or being stepped on, falls, gunshot wounds or animal fights.