fallopian tube


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fallopian tube

(fəlō`pēən), either of a pair of tubes extending from the uterus to the paired ovaries in the human female, also called oviducts, technically known as the uterine tube. At one end the long, slender fallopian tube opens into the uterus; the other end expands into a funnel shape near the ovary. The epithelium that lines the tube is covered with cilia that beat continuously toward the uterus. When an ovum is expelled into the peritoneal cavity from the ovary during ovulation, it is propelled into the wide-mouthed opening of the fallopian tube, through the tube, and into the uterus by the wavelike motion of the cilia. If the ovum is fertilized, an event that normally takes place in the fallopian tube, and the embryo (fertilized ovum) implants in the tube, or another area outside the uterus, an ectopic pregnancy occurs. About 98% of ectopic implantations occur in the tubes, but other sites include the abdomen, ovary, and cervix. Immediate surgical removal of the products of conception is necessary to prevent hemorrhage and other complications resulting from ectopic pregnancy. The fallopian tubes are also the site of the most common surgical procedures used to prevent conception or cause infertility in women. Usually the tubes are tied off in a procedure known as tubal ligation, although they are also sometimes excised or occluded by other methods. See reproductive systemreproductive system,
in animals, the anatomical organs concerned with production of offspring. In humans and other mammals the female reproductive system produces the female reproductive cells (the eggs, or ova) and contains an organ in which development of the fetus takes
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; uterusuterus,
in most female mammals, hollow muscular organ in which the fetus develops and from which it is delivered at the end of pregnancy. The human uterus is pear-shaped and about 3 in. (7.
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.

Fallopian tube

The upper part of the female oviduct present in humans and other higher vertebrates. The Fallopian tube extends from the ovary to the uterus and transports ova from the ovary to the cavity of the uterus. Each tube is about 5 in. (12.5 cm) long; one lies on either side of the uterus and is attached at the upper portion. Each curves outward to end in a hoodlike opening, the infundibulum, with many fingerlike projections; the cavity of the Fallopian tube is continuous with the cavity of the coelom. The ovaries lie below and inside the tubal curve.

The ovum remains viable in the oviduct for about 1–3 days only. If fertilization occurs, the ovum moves into the cavity of the uterus and then implants on its wall. If fertilization fails to occur, the ovum degenerates in the uterus. Occasionally, a fertilized ovum fails to enter the uterus, or may be freed into the abdominal cavity, so that an ectopic pregnancy results if the ovum finds a site for implantation. See Reproductive system

Fallopian tube

[fə′lō·pē·ən ′tüb]
(anatomy)
Either of the paired oviducts that extend from the ovary to the uterus for conduction of the ovum in mammals.
References in periodicals archive ?
However, in 2 cases the STICs were identified as mucosal metastases to the fallopian tube rather than HGSC precursors.
Conclusion: Fallopian tube recanalization by ozone perfusion can effectively increase the postoperative pregnancy rate and reduce the fallopian tube re-occlusion.
The Food and Drug Administration recently approved Zejula as a once-daily oral maintenance treatment for women with recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum based chemotherapy.
Tubal lesion was situated in fimbrial end of fallopian tube in eight cases out of ten(80%).
The report provides a snapshot of the global therapeutic landscape of Fallopian Tube Cancer
The main criterion to differentiate the fallopian tube carcinoma from the ovarian primary is the histological evidence of a transition between invasive malignancy and in situ carcinoma within the fallopian tube epithelium.
Uterus is hypoplastic, irregular, T-shaped with hypoplastic and strictured fallopian tube (Fig.
The report reviews key players involved in the therapeutics development for Fallopian Tube Cancer and enlists all their major and minor projects
The rings initially enclosed the fallopian tube and ovarian ligament, but the top ring subsequently migrated off the structures, allowing the fallopian tube to slip out of the attachment.
Another woman had a fallopian tube removed instead of her appendix.
The uterine horns, fallopian tubes and ovaries were identified and right sided fallopian tube of each rat (group A, B, C,) were dissected out and put into 10% formalin for fixation.
The little swimmers use head-on currents to guide themselves up fallopian tubes toward an egg, a new study suggests.