They occur when there is a breakdown in the integrity of the corneal epithelium .
该情况发生于角膜上皮的完整性受到破坏时。
Bright green , neural retina ; off green , pigment epithelium ; blue , nuclei ; red , active myosin ( strong in the inner surface of pigment epithelium ) .
Fluorescein staining reveals the characteristic dendritic pattern of ulcers which represent areas of denuded corneal epithelium .
荧光素染色可发现特征性的树枝形状溃疡，染色区域的角膜上皮脱落。
The human nose contains a postage stamp-size smelling organ , called the olfactory epithelium , at the roof of the nasal cavity .
人类鼻腔的屋顶，有一块面积如邮票大小被称之为“嗅上皮”的嗅觉器官，
Pooling together 801 neural recordings from people 's noses , the team found that some regions of the epithelium are better at detecting scent than other regions .
