Eucestoda
Eucestoda
Eucestoda (pronounced: yoo-SES-toh-duh) is a class of parasitic worms from the phylum Platyhelminthes. They are commonly known as tapeworms due to their flat, ribbon-like bodies.
Etymology
The term "Eucestoda" is derived from the Greek words "eu" meaning "true" and "keisthai" meaning "to lie down". This refers to the flat, ribbon-like body structure of these organisms.
Description
Eucestoda are characterized by their elongated, segmented bodies. Each segment, or proglottid, contains both male and female reproductive organs, allowing the tapeworm to self-fertilize. The head, or scolex, is equipped with hooks and suckers for attachment to the host's intestinal wall.
Life Cycle
The life cycle of Eucestoda involves two hosts. The primary host, usually a vertebrate, harbors the adult worm in its intestine. The secondary host, often an invertebrate, ingests the eggs or larvae and is subsequently eaten by the primary host, completing the cycle.
Medical Significance
In humans, Eucestoda can cause a condition known as cestodiasis, which is the infection of the digestive tract by tapeworms. Symptoms can range from mild to severe, depending on the species of tapeworm and the number of worms present.
Related Terms
External links
- Medical encyclopedia article on Eucestoda
- Wikipedia's article - Eucestoda
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