Cellular thorn-like projections in human endocervical epithelium. Preliminary scanning electron-microscopic study.
By means of scanning electron-microscopic investigations, thorn-like projections (TLP) were observed in the cilio-secretory epithelium of the ventral surface of the human endocervix. These projections, which seem to be characteristic of a new cell type, were seen at different stages of the menstrual cycle (days 8, 14 and 21) in 4 apparently healthy fertile women. Striking differences in length, with a maximum size at midcycle, suggest an evolutive process throughout the menstrual cycle. The origin and possible physiological role of TLP in the reproductive process are discussed.
D000328:Adult; D002584:Cervix Uteri / Q000648:ultrastructure*; D002923:Cilia / Q000648:ultrastructure; D004848:Epithelium / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008598:Menstruation; D008855:Microscopy, Electron, Scanning; D009092:Mucous Membrane / Q000648:ultrastructure