Microbehunter Microscopy Magazine Logo Banner Micrographs
Popular
Beginners
Magazine
Forum
Blog
Videos
Shop
 

Trichinella spiralis – the “pork worm”

Found in: Observations and pictures

Trichinella spiralis is the smallest nematode parasite in humans. It causes the disease trichinosis. It is also one of the most wide spread parasites of the world. It can be contracted by eating raw or half-cooked pork or wild game animals.

Related Posts Plugin for WordPress, Blogger...

Trichinella spiralis is the smallest nematode parasite in humans. It causes the disease trichinosis. It is also one of the most wide spread parasites of the world. It can be contracted by eating raw or half-cooked pork or wild game animals.

Trichinella spiralis nematode parasite

Encapsuled Trichinella spiralis larva in muscle. The larva is cut diagonally.

Trichinella spiralis nematode parasite

Longitudinal cross-section.

Trichinella spiralis nematode parasite

The larva (circular patterns) in cross-section.

Life Cycle of Trichinella spiralis

  • T. spiralis larva are encapsuled in the muscle of the host animal. The pictures on the right show different cross-sections of this stage.
  • A person who eats raw or undercooked meat will take these larva up into the body. The larvae are released by the stomach acid and pass into the intestine, where they mature and start to reproduce.
  • The offspring larvae travel in the circulatory system throughout the body and settle in the muscles, where they encyst again.
Related Posts Plugin for WordPress, Blogger...
«
»

This site uses cookies. By continuing to use the site, you agree to the use of cookies. For more information more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close