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.
Full Definition of TRAUMA. 1. a: an injury (as a wound) to living tissue caused by an extrinsic agent b: a disordered psychic or behavioral state resulting from severe mental or emotional stress or physical injury. 2.: an agent, force, or mechanism that causes trauma. â trauÂ·matÂ·ic \trÉ-Ëma-tik, troÌ-, trauÌ-\ adjective. She never fully recovered from the trauma of her experiences. 2  an accident victim with severe head trauma. 3  repeated trauma to a knee. 4  The accident victim sustained multiple traumas.