IMR Press / CEOG / Volume 10 / Issue 2-3 / pii/1634257883194-1091222378

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Original Research
Cyclical changes in the epithelium of the fallopian tube studies with scanner electron microscopy (SEM)
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1 Department of Obstetrics and Gynecology School of Medicine, Valencia (Spain)
Clin. Exp. Obstet. Gynecol. 1983, 10(2-3), 79–86;
Published: 10 June 1983
Abstract

By means of SEM the existence of cyclical changes has been demonstrated on the surface of the tube that is of paramount importance in the biology of reproduction. The frequency of ciliary cells increases under the influence of estro-gens, producing erect cilius. Under the influence of progesterone, they are frequent once again but due to the disappearance of secretory activity of the secretory cells. The days preceding and immediately following ovulation (days 13 to 17) the maximum cellular secretion is observed by virtue of apocrine secretion, characterized by the elimination of part of the cellular cytoplasm, and merocrine secretion brought about by multiple and coarse microvilli. The fluid that is produced during these days serves as a vehicle of sperm transport and prevents the descent of the fertile egg.
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