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.
Physical trauma is a serious injury to the body. Blunt force trauma occurs when the body is struck with an object or force, causing concussions, lacerations or fractures. Penetrating trauma occurs when an object pierces the skin or body, usually creating an open wound. Trauma also results from 'controlled injury,' such as that caused by surgery.