Fimbriae of a fallopian tube, coloured scanning electron micrograph (SEM). Fimbriae are the folds at the opening (ostium) of a fallopian tube, next to an ovary. They help to guide a newly-released ovum (egg cell) into the tube itself. One fallopian tube runs from each ovary into the uterus (womb). Ova travel down the tubes into the uterus. The epithelium consists of columnar cells, many of which have cilia (yellow) that help to move the ova along the tube. Magnification: x180 when printed 15cm wide.