<prompt> Roots valves of deep tendon reflexesBiceps jerk C5, C6Supinator jerk C7Triceps Jerk C8Ankle jerk L4, L5  <response>: Deep tendon reflex also usually refers to this sense. A deep tendon reflex is often associated with muscle stretching. Tendon reflex tests are used to determine the integrity of the spinal cord and peripheral nervous system, and they can be used to determine the presence of a neuromuscular disease. Ref: guyton and hall textbook of medical physiology 12 edition page number: 775,776,777 