False-colour SEM of the surface of the ovary

False-colour SEM of the surface of the ovary

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Credit: PROF. P. MOTTA/DEPT. OF ANATOMY/UNIVERSITY "LA SAPIENZA", ROME/SCIENCE PHOTO LIBRARY

Caption: Ovary. False-colour scanning electron micrograph of the external surface of the ovary known as the germinal epithelium. The swollen surface at top reflects the presence of a mature follicle beneath, known as the Graafian follicle, in which the ovum is ready to be ejected into the Fallopian tube. The turgidness is caused by an enlarged cavity in the follicle, the follicular antrum, in which fluid is stored. At ovulation the mature follicle ruptures and the ovum surrounded by a glycoprotein layer (zona pellucida) and a thick layer of cells (corona radiata) is expelled. Magnification: x100 at 6x7cm size. x1390 at 4x5".

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Keywords: anatomy, epithelium, false-coloured, female, follicle, follicular antrum, germinal, germinal epithelium, graafian follicle, human body, mature, ovarian, ovary, ovary surface, ovulation, reproduction, reproductive system

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