You may have an infection.     A positive finding of the enzyme leukocyte esterase in urinalysis  indicates the presence of white blood cells in the urine. This  n â¦ ormally suggests inflammation of some sort, often from a urinary  tract infection.
The nictitating membrane of a masked lapwing as it closes. The nictitating membrane (from Latin nictare, to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten it while maintaining vision.
The basement membrane (membrana basalis) is a thin layer of basal lamina and reticular lamina that anchors and supports the epithelium and endothelium.Epithelium is a type of tissue that forms glands and lines the inner and outer surfaces of organs and structures throughout the body.he reticular layer lies inside the basal lamina and is composed of fibrous tissue. Principally, the basement membrane serves to tie the epithelium to the connective tissue beneath it.