DR. E. WALKER / SCIENCE PHOTO LIBRARY DR. E. WALKER / SCIENCE PHOTO LIBRARY
Cervical epithelium. Light micrograph of a section through the epithelium of a biopsy taken from a healthy human cervix. The cervix is the narrow passage that connects the vagina and the uterus. The epithelial cells show a typically stratified (layered) form. Cell division is confined to a single layer of cuboidal cells (darkly stained layer, lower frame). As the cells mature they are pushed upwards and their nuclei (dark dots) thicken and eventually break down. The cell cytoplasm becomes progressively flattened until the cells are shed from the surface (top left). Haematoxylin and eosin stained. Magnification: x200 at 35mm size.
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