PROFESSOR P.M. MOTTA & E. VIZZA / SCIENCE PHOTO LIBRARY PROFESSOR P.M. MOTTA & E. VIZZA / SCIENCE PHOTO LIBRARY
Uterus endometrium. Coloured Scanning Electron Micrograph (SEM) of a section through the inner wall (endometrium) of the uterus. At top (pink) is the surface of the endometrium containing openings to tubular uterine glands. Epithelial cells making up this wall run left to right (upper centre, blue). Beneath the epithelium are seen the tubular bodies of uterine glands (brown). The glands are embedded in abundant collagen and reticular fibres (yellow) of stroma connective tissue. After ovulation the glands become active and secrete substances to nourish the fertilised egg. Magnification: x440 at 6x7cm size.
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