Dictionary > Taenia

Taenia

Definition
noun
A genus of the class Cestoda that is comprised of tapeworms that cause taeniasis and cysticercosis
Supplement
Taenia is a genus of the class Cestoda. It is a type of helminth (parasitic flatworms). There are about a hundred of species known to belong to this group. Some of the species are Taenia saginata (beef tapeworm), Taenia solium (pork tapeworm), Taenia asiatica (Asian taenia), Taenia pisiformis (tapeworm of wild dogs and rabbits), etc. All of the species of this genus are strongly similar in form and biology. They appear as ribbonlike. The ribbonlike body structure is due to the long and slender and is called strobila. The strobila is comprised of a series of proglottids. The proglottid is produced from the neck connecting the head (called scolex) and the strobila. The distal proglottids are mature in a way that they contain the eggs. The scolex has bothria that act as suction cups.
Taenia spp. are hermaphrodite. They reproduce sexually by self-fertilization. The eggs are released to the outside through the anus. The intermediate host that feed on fodder contaminated with embryonated Taenia eggs (oncospheres) becomes infected. The larva from the egg is released. It, then, migrates to the tissues of the host and encyst. The definite host that feeds on raw or undercooked meat contaminated with the larval stage (cysticercus) of Taenia becomes infested. The larva moves to the intestines to further grow and mature into an adult worm. The worm absorbs nutrients from the food digested in the intestine through its skin.
Scientific classification:

  • Kingdom: Animalia
  • Phylum: Platyhelminthes
  • Class: Cestoda
  • Order: Cyclophyllidea
  • Family: Taeniidae
  • Genus: Taenia (Linnaeus, 1758)

See also:


You will also like...

Plant meristem
Plant Meristems and Growth

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Lake Wakatipu, New Zealand
New Zealand’s Unique Geographical History

Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

Gene Pool and Speciation
The Gene Pool and Population Genetics

According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

A sperm cell fertilizing an ovum
Human Reproduction and Fertilization

For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

New Zealand - Biodiversity fauna
New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

Chromosomes X and Y and Sex Determination
Chromosomes X and Y and Sex Determination

This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..

Related Articles...

No related articles found

See all Related Topics