Tapeworms
Tapeworms
Tapeworms (pronunciation: /ˈteɪpˌwɜːrm/), scientifically known as Cestoda, are a class of parasitic flatworms, typically living in the digestive tracts of vertebrates as adults.
Etymology
The term "tapeworm" is derived from the worm's ribbon-like appearance, which resembles a length of tape. The scientific name, Cestoda, comes from the Latin word "cestus", meaning "girdle" or "belt", referring to the worm's flat, band-like appearance.
Description
Tapeworms are segmented worms that can range in size from less than 1 mm to over 20 m. They have a head, or scolex, equipped with hooks and suckers for attachment to the host. The body consists of a series of segments, or proglottids, each of which can produce eggs.
Life Cycle
The life cycle of a tapeworm involves three stages: egg, larva, and adult. The eggs are passed in the feces of the host and ingested by an intermediate host, typically a small mammal or fish. The larvae develop in the tissues of the intermediate host and are ingested by the definitive host, where they develop into adults in the intestine.
Diseases
Tapeworms are responsible for a number of diseases in humans, including taeniasis, cysticercosis, and echinococcosis. These diseases can cause a variety of symptoms, ranging from mild discomfort to serious health complications.
Treatment
Treatment for tapeworm infections typically involves antiparasitic medication, such as praziquantel or niclosamide. In some cases, surgery may be required to remove large tapeworms or cysts.
Prevention
Prevention of tapeworm infections involves proper food handling and cooking, as well as regular deworming of pets.
External links
- Medical encyclopedia article on Tapeworms
- Wikipedia's article - Tapeworms
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