HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY HERVE CONGE, ISM / SCIENCE PHOTO LIBRARY
Vagina cells. Light micrograph of cells from the internal lining of the vagina, part of the female reproductive system. These cells were obtained as part of a vaginal smear, a standard test to check for disease. There are two types of cells here, both with nuclei (small, round, and black). There are superficial cells (orange), and intermediate cells (blue). The intermediate cells are not as well differentiated as the superficial cells. The superficial cells produce glycogen throughout the menstrual cycle. This is metabolised by commensal Lactobacilllus bacteria to produce lactic acid and inhibit the growth of disease-causing microbes. Papanicalaou stain. Magnification: x285 when printed 10cm wide.
Model release not required. Property release not required.