Surgery Rapid onset of action seen by local anesthesia in small nerve endings is due to A Increased threshold of small nerves due to depolarization B Low pH of small nerve fibres C High ratio of surface area to the volume of small nerve fibres D Increased resting potential of small nerve fibres 💡 Explanation Rapid onset of action seen by local anesthesia in small nerve endings is due to ✓ Correct Answer: C. High ratio of surface area to the volume of small nerve fibres