PROFF. P. MOTTA / F. BARBERINI / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY PROFF. P. MOTTA / F. BARBERINI / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY
The internal wall of the uterus in pregnancy. False-colour scanning electron micrograph of the uterine mucosa, the inner part of the endometrium, during pregnancy. The uterine mucosa is composed of simple columnar cells characterised by a vast number of microvilli on their surface. During pregnancy these cells increase their size and their secretory activity and the uterine mucosa shows a typical microfolded structure. The blood circulation in the underlying connective tissue also increases in order to provide more nutrient substances to the foetus. Magnification: x210 at 6x7cm size. Magnification: x330 at 4x5 inch size.
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