Fallopian tubes

Jump to: navigation, search
Fallopian tube
File:Scheme female reproductive system-en.svg
Schematic frontal view of female anatomy
Gray589.png
Vessels of the uterus and its appendages, rear view. (Fallopian tubes visible at top right and top left.)
Latin tuba uterina
Gray's subject #267 1257
Artery tubal branches of ovarian artery, tubal branch of uterine artery
Lymph lumbar lymph nodes
Precursor Müllerian duct
MeSH Fallopian+Tubes
Dorlands/Elsevier t_21/12827008

WikiDoc Resources for Fallopian tubes

Articles

Most recent articles on Fallopian tubes

Most cited articles on Fallopian tubes

Review articles on Fallopian tubes

Articles on Fallopian tubes in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Fallopian tubes

Images of Fallopian tubes

Photos of Fallopian tubes

Podcasts & MP3s on Fallopian tubes

Videos on Fallopian tubes

Evidence Based Medicine

Cochrane Collaboration on Fallopian tubes

Bandolier on Fallopian tubes

TRIP on Fallopian tubes

Clinical Trials

Ongoing Trials on Fallopian tubes at Clinical Trials.gov

Trial results on Fallopian tubes

Clinical Trials on Fallopian tubes at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Fallopian tubes

NICE Guidance on Fallopian tubes

NHS PRODIGY Guidance

FDA on Fallopian tubes

CDC on Fallopian tubes

Books

Books on Fallopian tubes

News

Fallopian tubes in the news

Be alerted to news on Fallopian tubes

News trends on Fallopian tubes

Commentary

Blogs on Fallopian tubes

Definitions

Definitions of Fallopian tubes

Patient Resources / Community

Patient resources on Fallopian tubes

Discussion groups on Fallopian tubes

Patient Handouts on Fallopian tubes

Directions to Hospitals Treating Fallopian tubes

Risk calculators and risk factors for Fallopian tubes

Healthcare Provider Resources

Symptoms of Fallopian tubes

Causes & Risk Factors for Fallopian tubes

Diagnostic studies for Fallopian tubes

Treatment of Fallopian tubes

Continuing Medical Education (CME)

CME Programs on Fallopian tubes

International

Fallopian tubes en Espanol

Fallopian tubes en Francais

Business

Fallopian tubes in the Marketplace

Patents on Fallopian tubes

Experimental / Informatics

List of terms related to Fallopian tubes


The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges (singular salpinx) are two very fine tubes leading from the ovaries of female mammals into the uterus.

Anatomy

There are two Fallopian tubes, attached to either side of the cornual end of the uterus, and each terminating at or near one ovary forming a structure called the fimbria.

The Fallopian tubes are not directly attached to the ovaries, but open into the peritoneal cavity (essentially the inside of the abdomen); they thus form a direct communication between the peritoneal cavity and the outside via the vagina.

In humans, the Fallopian tubes are about 7–14 cm long.

Regions

There are four regions of the fallopian tube from the ovary to the uterus:[1]

Histology

Layers of the wall of the fallopian tube.

There are three layers of the fallopian tube:[2]

  • Mucosa - the distinctive folds of the mucosa are the most unusual feature. The folds contain ciliated cells and "peg cells".[3][4] The region of the fallopian tube can be approximated by looking at the mucosa, because the folds are most elaborate at the ampulla and almost nonexistent at the intramural portion.
  • Muscularis externa
  • Serosa

Motility

The Fallopian tubes are mobile, and have been observed on time-lapse videography moving about the pelvis.

Although anatomical illustrations have them proceeding from the uterine horns to the ovary, this is not the case for most of the menstrual cycle, and a tube may cross to the other side or lie on top of the uterus.

Function in fertilization

When an ovum is developing in an ovary, it is encapsulated in a sac known as an ovarian follicle.

On maturity of the ovum, the follicle and the ovary's wall rupture, allowing the ovum to escape and enter the Fallopian tube. There it travels toward the uterus, pushed along by movements of cilia on the inner lining of the tubes. This trip takes hours or days. If the ovum is fertilized while in the Fallopian tube, then it normally implants in the endometrium when it reaches the uterus, which signals the beginning of pregnancy.

Occasionally the embryo implants into the Fallopian tube instead of the uterus, creating an ectopic pregnancy, commonly known as a "tubal pregnancy".

Embryology and homology

The Fallopian tubes are not homologous to the vas deferens or any other structure in males.

Embryos have two pairs of ducts to let gametes out of the body; one pair (the Müllerian ducts) develops in females into the Fallopian tubes, uterus and vagina, while the other pair (the Wolffian ducts) develops in males into the epididymis and vas deferens.

Normally, only one of the pairs of tubes will develop while the other regresses and disappears in the utero.

Pathology

Pelvic inflammatory disease can strike the fallopian tubes. This might cause a fallopian tube obstruction.

Surgery

The surgical removal of a Fallopian tube is called a salpingectomy. To remove both sides is a bilateral salpingectomy. An operation that combines the removal of a Fallopian tube with removal of at least one ovary is a salpingo-oophorectomy. An operation to restore a fallopian tube obstruction is called a tuboplasty.

Etymology and nomenclature

They are named after their discoverer, the 16th century Italian anatomist, Gabriele Falloppio.

Though the name 'Fallopian tube' is eponymous, some texts spell it with a lower case 'f' owing to the theory that the adjective 'fallopian' has been absorbed into modern English as the de facto name for the structure.

The Greek word salpinx (σαλπιγξ) means "trumpet".

Additional images

See also

References

  1. SUNY Labs 43:04-0101 - "The Female Pelvis: The Oviduct"
  2. Histology at University of Southern California rep/c_27
  3. Histology at University of Southern California rep/c_31
  4. http://www3.umdnj.edu/histsweb/lab17/lab17oviduct.html

External links

ar:قناة فالوب bs:Jajovodi br:Trompilhoù Fallopia bg:Маточна тръба cs:Vejcovod da:Æggeleder de:Eileiter dv:ބިސް ދަތުރުކުރާ ހޮޅި eo:Salpingo id:Tuba fallopi it:Tuba di Falloppio he:חצוצרה (איבר) lt:Kiaušintakis mk:Јајцевод nl:Eileider simple:Fallopian tube sk:Vajíčkovod sl:Jajcevod sr:Јајоводи sh:Jajovodi fi:Munanjohdin sv:Äggledare ta:பாலோப்பியன் குழாய்


Linked-in.jpg