Wikipedia

Fil:Entamoeba histolytica Amebiasis LifeCycle.gif

Entamoeba_histolytica_Amebiasis_LifeCycle.gif ‎(435 × 548 pixlar, filstorlek: 28 kbyte, MIME-typ: image/gif, 0,2 s)

Wikimedia Commons Denna fil tillhandahålls av Wikimedia Commons. Informationen nedan är kopierad från dess filbeskrivningssida.

Sammanfattning

Beskrivning

Amebiasis [Entamoeba histolytica]

Life Cycle of Entamoeba histolytica

Cysts and trophozoites are passed in feces . Cysts are typically found in formed stool, whereas trophozoites are typically found in diarrheal stool. Infection by Entamoeba histolytica occurs by ingestion of mature cysts in fecally contaminated food, water, or hands. Excystation occurs in the small intestine and trophozoites are released, which migrate to the large intestine. The trophozoites multiply by binary fission and produce cysts , and both stages are passed in the feces . Because of the protection conferred by their walls, the cysts can survive days to weeks in the external environment and are responsible for transmission. Trophozoites passed in the stool are rapidly destroyed once outside the body, and if ingested would not survive exposure to the gastric environment. In many cases, the trophozoites remain confined to the intestinal lumen ( : noninvasive infection) of individuals who are asymptomatic carriers, passing cysts in their stool. In some patients the trophozoites invade the intestinal mucosa ( : intestinal disease), or, through the bloodstream, extraintestinal sites such as the liver, brain, and lungs ( : extraintestinal disease), with resultant pathologic manifestations. It has been established that the invasive and noninvasive forms represent two separate species, respectively E. histolytica and E. dispar. These two species are morphologically indistinguishable unless E. histolytica is observed with ingested red blood cells (erythrophagocystosis). Transmission can also occur through exposure to fecal matter during sexual contact (in which case not only cysts, but also trophozoites could prove infective).
Källa DPD CDC http://www.dpd.cdc.gov/dpdx/images/ParasiteImages/A-F/Amebiasis/Amebiasis_LifeCycle.gif
Skapare
Denna media saknar information om dess skapare.
Andra versioner (french) Image:Entamoeba histolytica Amibiase CycleParasitaire.GIF

Licensiering

Public domain
This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

eesti ∙ Deutsch ∙ čeština ∙ español ∙ português ∙ English ∙ français ∙ Nederlands ∙ polski ∙ slovenščina ∙ suomi ∙ македонски ∙ українська ∙ 日本語 ∙ 中文（简体）‎ ∙ 中文（繁體）‎ ∙ العربية ∙ +/−

Filhistorik

Klicka på ett datum/klockslag för att se filen som den såg ut då.

Datum/TidMiniatyrbildDimensionerAnvändareKommentar
nuvarande29 april 2006 kl. 16.26Miniatyrbild för versionen från den 29 april 2006 kl. 16.26435 × 548 (28 kbyte)Patho{{Information| |Description= Amebiasis [Entamoeba histolytica] Life Cycle of Entamoeba histolytica Cysts and trophozoites are passed in feces . Cysts are typically found in formed stool, whereas trophozoites are typically found in diarrheal stool.

Följande sida använder den här filen:

Global filanvändning

Följande andra wikier använder denna fil:

Hämtad från ”https://sv.wikipedia.org/wiki/Fil:Entamoeba_histolytica_Amebiasis_LifeCycle.gif”