This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
Sharp stabbing pain is carried by which type of fibers - 
Select and explain. 
A. Aa, B. Ad, C. B, D. C
B: Ad
Answer: B: Ad 
Explanation: Ans. is 'b' i.e., A5 * Pain is carried by two types of neurons :a) Ad fibers : Fast fibers carrying sharp well localized pain.b) C fibers: Poorly localized dull and acting pain.