These structures are the most common location of Walthard nests. A serous carcinoma called STIC that arises in the stem-like peg cells of these structures may be the true origin of high-grade serous carcinomas of [emphasize] another organ. Interaction with these structures’ epithelium capacitates the CatSper channels of certain rheotactic cells, allowing them to move up these structures’ temperature gradient. The documentary The Bleeding Edge highlights the failures of the deprecated Essure procedure, which occluded these structures by inserting metal coils into them. A contrast leak during an HSG indicates these structures’ patency. Occlusions of these structures, like those caused by a hydrosalpinx or endometriosis, account for 20 percent of female infertility cases. For 10 points, finger-like projections called fimbriae terminate what paired structures that carry eggs from the ovaries to the uterus? ■END■
ANSWER: Fallopian tubes [or uterine tubes; or oviducts; accept salpinges or salpinx until “hydrosalpinx” is read; prompt on uterus; prompt on tubes] (HSG stands for hysterosalpingography.)
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= Average correct buzz position