File:Ascariasis LifeCycle - CDC Division of Parasitic Diseases.png
Ascariasis_LifeCycle_-_CDC_Division_of_Parasitic_Diseases.png (435 × 443 pixels, file size: 40 KB, MIME type: image/png)
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Summary
[edit]DescriptionAscariasis LifeCycle - CDC Division of Parasitic Diseases.png |
Adult worms 1 live in the lumen of the small intestine. A female may produce approximately 200,000 eggs per day, which are passed with the feces 2. Unfertilized eggs may be ingested but are not infective. Fertile eggs embryonate and become infective after 18 days to several weeks 3, depending on the environmental conditions (optimum: moist, warm, shaded soil). After infective eggs are swallowed 4, the larvae hatch 5, invade the intestinal mucosa, and are carried via the portal, then systemic circulation to the lungs . The larvae mature further in the lungs 6 (10 to 14 days), penetrate the alveolar walls, ascend the bronchial tree to the throat, and are swallowed 7. Upon reaching the small intestine, they develop into adult worms 8. Between 2 and 3 months are required from ingestion of the infective eggs to oviposition by the adult female. Adult worms can live 1 to 2 years. From http://www.dpd.cdc.gov/dpdx/HTML/ImageLibrary/Ascariasis_il.asp?body=A-F/Ascariasis/body_Ascariasis_il11.htm |
Source | US gov |
Author | US gov |
Other versions | Derivative works of this file: Ascariasis LifeCycle - CDC Division of Parasitic Diseases-gl.gif |
Licensing
[edit]Public domainPublic domainfalsefalse |
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.
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Original upload log
[edit]- 2005-04-06 16:36 Tagishsimon 435×443×7 (30680 bytes) Adult worms 1 live in the lumen of the small intestine. A female may produce approximately 200,000 eggs per day, which are passed with the feces 2. Unfertilized eggs may be ingested but are not infective. Fertile eggs embryonate and become infective af
Original upload log
[edit]Date/Time | Dimensions | User | Comment |
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12 November 2006, 22:15:52 | 435 × 443 (30680 bytes) | The cat (talk · contribs) | http://en.wikipedia.org/wiki/Image:Ascariasis_LifeCycle_-_CDC_Division_of_Parasitic_Diseases.gif |
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current | 12:46, 18 August 2014 | 435 × 443 (40 KB) | GifTagger (talk | contribs) | Bot: Converting file to superior PNG file. (Source: Ascariasis_LifeCycle_-_CDC_Division_of_Parasitic_Diseases.gif). This GIF was problematic due to non-greyscale... |
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File usage on Commons
The following 10 pages use this file:
- Ascaris
- Parasitic roundworms
- File:Ascariasis LifeCycle - CDC Division of Parasitic Diseases-gl.gif
- File:Ascariasis LifeCycle - CDC Division of Parasitic Diseases.gif (file redirect)
- File:Ascariasis LifeCycle - CDC Division of Parasitic Diseases - Spa.png
- File:Ascaridiasi Ciclo di vita.gif (file redirect)
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