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.
: any of various musculoskeletal disorders (as carpal tunnel syndrome or tendinitis) that are caused by cumulative damage to muscles, tendons, ligaments, nerves, or joints (as of the hand, wrist, arm, or shoulder) from highly repetitive movements and that are characterized chiefly by pain, weakness, and loss of feelingâcalled also cumulative trauma ...