fallopian tube

(redirected from Fallopian tubes)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

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
..... Click the link for more information.
; 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.
..... Click the link for more information.
.

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 ?
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.
Dysplastic changes in prophylactically removed Fallopian tubes of women predisposed to developing ovarian cancer.
Results: The success rate of fallopian tube recanalization was 93.
thoroughly examined the fallopian tubes from 55 consecutive cases of serous carcinoma and concluded that over 70% of serous carcinomas shows involvement of endosalpinx and 50% contains STIC.
Carcinoma of the fallopian tube, clinic-pathologic study of 151 patients treated at the Norwegian Radium Hospital.
Additional spot radiographs are obtained to document any abnormality--oblique radiographs of fallopian tubes may be obtained as needed to 'elongate' the tube or displace superimposed structure.
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.
Third image was for fallopian tubes and fourth film was for free intra peritoneal spillage of contrast.
The anatomy of the ovary with the ovarian cyst and its relationship with the fallopian tubes, uterus and the bowel is then assessed.
than the beating hair-like cilia that line the walls of the Fallopian tubes.
Researchers found that female smokers who have had an ectopic pregnancy have raised levels of a harmful protein - PROKR1 - in their fallopian tubes, caused by a chemical in smoke.
The procedure involves the passage of a hysteroscope through the vagina and uterus to the fallopian tubes, where a low level of radiofrequency energy is delivered to a small section of each tube.