A textbook of obstetrics . .. ,, 48.—Longitudinal section of Fallopian tube, exposing the complicated longitu-dinal plications oi the mucosa which expand into the fimbriae (Sappey). THE FEMALE SEXUAL ORGANS. 53 of the uterus at the upper edge and between the layers ofthe broad ligament outward, upward, and at their outer extremi-ties downward and backward to the free surface of the canal of the tube begins in the uterine wall as a fineopening (ostium internum) ; it expands to about 2 mm. ( m)in diameter, becomes wider as it runs outward, again contractswhere it passes the
A textbook of obstetrics . .. ,, 48.—Longitudinal section of Fallopian tube, exposing the complicated longitu-dinal plications oi the mucosa which expand into the fimbriae (Sappey). THE FEMALE SEXUAL ORGANS. 53 of the uterus at the upper edge and between the layers ofthe broad ligament outward, upward, and at their outer extremi-ties downward and backward to the free surface of the canal of the tube begins in the uterine wall as a fineopening (ostium internum) ; it expands to about 2 mm. ( m)in diameter, becomes wider as it runs outward, again contractswhere it passes the ovary, widens again to a distinct opening4 mm. (o. 157 in.) in diameter (ostium abdominale) into the apexof the pavilion, or infundibulum, a funnel-shaped expansion at itsouter extremity surrounded by fringed processes,—the Fg- 49-—Transverse section of Fallopian tube, showing the complicated arrangementof the longitudinal plications which are here cut across (Ahlfeld). The fimbriated extremity is connected with the ovary by thetubo-ovarian ligament. The tube has three coats,—a mucous, muscular, and mucous membrane of the tube consists of a single layer ofcolumnar, ciliated, epithelial cells, the cilia lashing toward theuterine cavity. The membrane is thrown into deep longitudinalfolds, becoming more complex as the fimbriated extremity isapproached. There are no glands in the mucous muscular coat consists of circular fibers of unstriped muscle, 1 Older anatomists divided the tube into the isthmus, comprising the inner third,the ampulla, the outer or expanded portion, and the fimbriae. 54 PREGNANCY. with an outer, ill-developed layer of longitudinal fibers. Theserous covering is continuous with the serous covering of thebroad ligament. The ovaries are almond-shaped bodies varyi
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
