This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerve Physiology, Subject name: Physiology
Neuropraxiais- 
Select and explain. 
A. Damage to axon, B. Damage to endoneurium, C. Damage to epineurium, D. No Structural damage
D: No Structural damage
Answer: D: No Structural damage 
Explanation: Ans. is 'd' i.e., No Structural damage Neuropraxiao No anatomic disruption : Axon & myelin sheath remain intactAxontemesiso Disruption of axon with myelin sheath. Endoneurium is intactNeurotemesiso Complete section of nerve - Axon, myelin sheath, endoneuriun, perineurium, epineurium all are disrupted