PROFESSOR P.M. MOTTA & E. VIZZA / SCIENCE PHOTO LIBRARY PROFESSOR P.M. MOTTA & E. VIZZA / SCIENCE PHOTO LIBRARY
Smooth muscle in human oviduct. Coloured Scanning Electron Micrograph (SEM) of the human oviduct, showing smooth muscle. The oviduct or Fallopian tube is the channel in which the egg is usually fertilized. It conducts the female egg from the ovary (where it is formed) to the uterus where the fertilized egg develops into an embryo. Here, bands of smooth muscle cells are seen in the ovi- duct wall, which by their peristaltic action push the egg down the oviduct. A nerve (yellow) is seen at left. The inner lining of the oviduct (not seen) has ciliated cells which also help to propel the egg. Magnification: x1,500 at 6x7cm size. Magnification: x1,860 at 4x5 inch size.
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