疼痛是一种主观感觉,当机体外周受到伤害性刺激,继向中枢传导遂产生疼痛并引起反射反应。病人常常因有疼痛而就医,医生常需分析疼痛以进行诊治。因此,对疼痛有初步了解是颇有必要的。解剖生理学:痛觉的感受器是神经末梢,任何刺激达到一定强度成为伤害性者,就能引 Pain is a subjective feeling, when the body peripheral noxious stimuli, followed by the central conduction and then produce pain and cause reflex reactions. Patients often have pain because of medical treatment, the doctor often need to analyze the pain for diagnosis and treatment. Therefore, a preliminary understanding of pain is necessary. Anatomical physiology: pain sensory receptors are nerve endings, any stimulus to achieve a certain strength become harmful, can lead