发生机制 Mechanism
各种刺激(物理或化学性) Various stimuli (physical or chemical)
致痛物质 Substance which Induce pain
游离神经末梢 Free nerve endings
大脑皮质第一感觉区The first sensory area of cerebral cortex
头 痛 Headache
发生机制 mechanism 病因 causes 临床表现 clinical manifestation 伴随症状 accompanying symptoms
头痛发生机制
1、血管因素:各种原因所致颅内外血管的收缩、扩张 2、脑膜受刺激或牵拉 3、具有痛觉的脑神经(V.IX.X)和颈神经受刺激或挤压、牵拉 4、头颈部肌肉的收缩 5、五官和颈椎病变引起的头面牵涉痛 6、生化因素和内分泌紊乱 7、神经功能紊乱
Intracranial lesions
Infection: meningitis, meningocephalitis, encephalitis, brain abscess
Vascular disease: Subarachnoid hemorrhage,cerebral hemorrhage, cerebral thrombosis, cerebral embolism, hypertensive encephalopathy, Cerebral blood deficiency, cerebral vascular malformation
Mechanism of headache
Vascular factor: the contraction and expansion of the internal and external blood vessels caused by various reasons