Pathophysiology病理生理 2. Allergy contact nasal Antigen bridging of antigen molecule and lgE mucosa again mast cell derganulation脱颗粒 release Histamine组织胺 and other mediators contraction of high excitability increasing in hypersensitivity resistant vessel parasympathetic vascular permeability of sensory nerve dilatation of nerve副交 通透性 感觉神经 capacity vessel 感神经 阻力血管收缩和 容量血管扩张 Increasing mucosal nasal itching pale &purple glandulous secretion edema sneezing Nasal mucosa 粘膜水肿 鼻痒、打喷嚏 blockage watery dischargePathophysiology病理生理 2. Allergy contact nasal Antigen bridging of antigen molecule and IgE mucosa again mast cell derganulation 脱颗粒 release Histamine 组织胺 and other mediators contraction of high excitability increasing in hypersensitivity resistant vessel parasympathetic vascular permeability of sensory nerve & dilatation of nerve 副交 通透性 感觉神经 capacity vessel 感神经 阻力血管收缩和 容量血管扩张 increasing mucosal nasal itching pale &purple glandulous secretion edema sneezing Nasal Mucosa 粘膜水肿 鼻痒、打喷嚏 blockage watery discharge