Pain is carried by w hich type of nerve fibres -
Ans. is 4d' i.e., C o Fast fibers carrying pain- Ad (fast pain)o Slow fibers carrying pain - C (slow pain)Functions of different fibreso Type A fibersA a- Proprioception, somatic motor (extrafusal fibers of muscle spindle).A b - Touch, pressure, kinestheticAg - Motor to intrafusal fibers of muscle spindleA d Pain, temperature, touch, pressureo Type B fibers - Preganglionic autonomico Type C fibers - Pain, temperature. Postganglionic autonomic (mainly sympathetic)
aa
b
B
C
Pain Physiology