论文部分内容阅读
角膜角膜起源于中外胚层,它没有血管并且缺乏淋巴引流,因此,在免疫学方面有其特殊性,主要涉及对于抗元刺激所产生的免疫反应的传入和传出二个部分,因为抗元被包埋在角膜之内,难于接近淋巴组织,致使淋巴细胞的渗入角膜被阻断。有证据认为,传入途径是那些可溶性抗元逐渐的渗透入角膜外周,聚集在周围淋巴结(特别是耳前淋巴结)甚至中枢淋巴器官,已经到达角膜周边的抗元可以任意直接通过淋巴细胞出现在球结膜,也有证据表明,抗元进入血流,进入周围静脉丛或通过前房和房水通道,其途径尚未知晓,但是,在接近角膜的淋巴组织中的致敏作用最大,而远离中心处的抗元,多半被稀释。
Corneal cornea originated in the ectoderm, it has no blood vessels and the lack of lymphatic drainage, therefore, has its particularity in immunology, mainly related to anti-stimulation of the immune response produced by two parts of the incoming and outgoing, because anti-yuan Is embedded in the cornea, is difficult to access the lymphoid tissue, causing infiltration of lymphocytes into the cornea is blocked. Evidence suggests that the afferent pathway is that those soluble anti-elements gradually penetrate into the corneal periphery and accumulate in the surrounding lymph nodes (especially the anterior ear lymph nodes) or even in the central lymphoid organs. The anti-cells that have reached the corneal periphery may appear directly in lymphocytes Bulbar conjunctiva, there is also evidence that anti-yuan into the bloodstream, into the peripheral venous plexus or through the anterior chamber and aqueous channel, the path is not yet known, however, in the corneal lymphoid tissue sensitization most prominent away from the center Anti-Yuan, mostly diluted.