STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Human vagina. Light micrograph of a section through the wall of the vagina. The lumen (at top) is lined with a mucosa of stratified squamous epithelial cells (red) and a lamina propria (blue) containing blood vessels and nerves. The thickness of this mucosal layer changes during the menstrual cycle. Magnification: x250 when printed at 10 centimetres wide.
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