(1) Results Afferent nerve discharge was increased after different dose of 5-HT and BK.

(2) The afferent nerve fibers were excited possibly belong to the different functional groups. Excitation of each group of fibers will cause algesia or analgesia respectively.

(3) CONCLUSION: The pulp vitality testing excited the afferent nerve fibers in the pulp only, while the EDA excited the afferent nerve fibers not only in the pulp but also in the gingiva.

(4) Their principal active component is capsaicin, which is a powerful stimulant of afferent nerve fibres.

(5) SP, as the matter released from termination of primary afferent nerve, take a very important role on the aspect of convection and regulation of harmful irritating information.

(6) Conclusion: The gastric algesia impulsion are mainly conducted by sympathetic afferent nerve.

(7) While the temperature of thermocoagulation reached 80℃, none of painful afferent nerve fibres survived.

(8) A touch or painful stimulus, for example, creates a sensation in the brain only after information about the stimulus travels there via afferent nerve pathways.

(9) Conclusion: The gastric algesia impulsion are mainly conducted by sympathetic afferent nerve. And NO protecting mucosa of gastric body are mainly introduced by vagus nerve.

(10) By using the method of electrophysiology, deals with the habituation of the other sidenape muscle reflex of cerebrum exists with rabbits by stimulated the vibrissaes afferent nerve.