title: Scanning electron microscopy of the human normal endometrium.
abstract: The AA. examined by scanning and transmission electron microscopy (SEM) the normal human endometrium of 21 females, 18 in fertile age and 3 in menopause. The study pointed out that the presence of cells with cilia and microvilli only in fertile women. This observation indicates the role these structures may have in the kinetic of spermatozoa, in the nidation and nutrition of oocyte and, at the same time, their dependence on the ovarian hormonal activity.
mesh_terms: D000328:Adult; D004717:Endometrium / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008593:Menopause; D008598:Menstruation; D008855:Microscopy, Electron, Scanning