This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Sensory fibers least susceptible to hypoxia ? \nSelect and explain. \nA. Type I, B. Type II, C. Type III, D. Type IV', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Type IVType C fibers (Type IV Lloyd & Hunt) are least susceptible to hyproxia.Local anesthesia, hypoxia and pressure can block the conduction of nerve impulses. Different fibers have different susceptibility :-Most susceptible fibers to pressure are 'A' fibers and least susceptible fibers to pressure are C fibers. Amongst the A fibers, Aa are most susceptible to pressure.Most susceptible fibers to hypoxia are B fibers and least susceptible fibers to hypoxia are C fibers.Most susceptible fibers to local anesthesia are C fibers and least susceptible fibers to LA are A fibers.", 'role': 'assistant'}]