This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Orthopaedics
[{'content': 'Most common nerve used for nerve conduction study in H reflex - \nSelect and explain. \nA. Median nerve, B. Ulnar nerve, C. Tibial nerve, D. Peroneal nerve', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The H-reflex (or Hoffmann&;s reflex) is a reflectory reaction of muscles after electrical stimulation of sensory fibers (Ia afferents stemming from muscle spindles) in their innervating nerves (for example, those located behind the knee- Tibial nerve). The H-reflex test is performed using an electric stimulator, which gives usually a square-wave current of sho duration and small amplitude (higher stimulations might involve alpha fibers, causing an F-wave, compromising the results), and an EMG set, to record the muscle response. REF : MAHESWARI 9TH ED', 'role': 'assistant'}]