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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.
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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

McGraw-Hill Concise Encyclopedia of Bioscience. © 2002 by The McGraw-Hill Companies, Inc.

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
When the uterus is large or lacks prolapse, the fallopian tubes can be difficult to visualize.
He added that in case there was rupture, the fallopian tube was damaged.
The effects of MSG on the fallopian tubes have been studied however the role of diltiazem in prevention of these effects has not been investigated.
The new study found that ovarian cancer cells have more in common with cells covering the tips of fallopian tubes than with those on the surface of ovaries.
Early detection of high-grade tubal serous carcinoma in women at low risk for hereditary breast and ovarian cancer syndrome by systematic examination of fallopian tubes incidentally removed during benign surgery.
Diagnostic HSG provides radiographic (X-ray) evaluation of the fallopian tubes and the inside of the uterine cavity.
In the present case, Laparoscopic evaluation of the hernial sac (left inguinal canal) revealed the uterus, ipsilateral ovary, fallopian tube, and the opposite adnexal mass.
in 2015,on fallopian tubes removed for nonprophylactic indication (in non-BRCA-1, BRCA-2 carrier patients), identified STIC lesions, some of which were associated with microscopic foci of high-grade serous carcinoma in the ipsilateral ovary.
In my humble opinion author failed to prove that these were really originating from fallopian tubes. 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.
| Stages 2 to 4, however, mean the cancer has spread, and you will usually need surgery to remove both ovaries, fallopian tubes and maybe even the womb; plus chemotherapy.
Hysterosalpingography (HSG) is radiographic evaluation of uterus and fallopian tubes and is used predominantly in evaluation of infertility.
in 2001 [11] reported that, when the fallopian tubes were more carefully examined, confirmed that in situ and small, early invasive tubal carcinomas occurred in women with a genetic predisposition for the development of ovarian carcinoma.