What is the characteristics of Taenia Saginata?

What is the characteristics of Taenia Saginata?

CHARACTERISTICS: Taenia saginata is a tapeworm of the class cestoidea, order cyclophyllidea, and family Taeniidae 1 2. Adult Worm: Mature worms are found only in humans. Mature worms are 4 to 8 meters in length with 1,000 to 2,000 proglottids. The scolex has 4 suckers and the rostellum has no hooks.

What is the morphology of a tapeworm?

Tapeworms are bilaterally symmetrical (i.e., the right and left sides are similar). Some consist of one long segment; others have a definite head, followed by a series of identical segments called proglottids. The head, or scolex, bears suckers and often hooks, which are used for attachment to the host.

What is the structure of Taenia?

The body of Taenia solium is long, dorsoventrally flattened, narrow, ribbon-like, reaching a length of two to three metres. The colour of the body is opaque-white. Body consists of scolex, neck and strobila or body segments.

What is the function of Proglottids in a tapeworm?

The adult tapeworm lives in the definitive host’s small intestine. Proglottids, which contain eggs, break off the posterior end of the tapeworm, and these proglottids are either passed intact in the host’s feces or they dissolve in the host’s intestine and eggs are passed in the feces.

What do Proglottids look like?

Proglottids contain tapeworm eggs; these eggs are released into the environment when the proglottid dries out. The dried proglottids are small (about 2 mm), hard and yellowish in color and can sometimes be seen stuck to the fur around the pet’s anus.

What is the difference between Proglottids and scolex?

The adult worm has a scolex, neck, and strobilus. The scolex contains organs which facilitate attachment to the host tissue. Proglottids are individual segments of the strobilus and contain reproductive organs of both sexes. The proglottids at the posterior end are mature in comparison to the ones at the anterior end.

Which of the is correct about Taenia solium?

It is found throughout the world and is most common in countries where pork is eaten. It is a tapeworm which has humans as its definitive host and often pigs as intermediate or secondary host….

What is the function of Proglottids?

The head, or scolex, bears suckers and often hooks, which are used for attachment to the host. The body covering is a tough cuticle, through which food is absorbed. There is neither a mouth nor a digestive tract. Tapeworms also lack a circulatory system…

How does Taenia Saginata reproduce?

As hermaphrodites, each body segment called proglottid has complete sets of both male and female reproductive systems. Thus, reproduction is by self-fertilisation. From humans, embryonated eggs, called oncospheres, are released with faeces and are transmitted to cattle through contaminated fodder.

What happens to the posterior most Proglottids of a tapeworm?

Proglottids, which contain eggs, break off the posterior end of the tapeworm, and these proglottids are either passed intact in the host’s feces or they dissolve in the host’s intestine and eggs are passed in the feces.

What kind of body does Taenia saginata have?

Morphology. Taenia saginata has a very distinctive morphology. This flatworm can grow in length from 4 to 12 meters long and 2 milimeters in diameter consisting of a scolex, neck, and strobila. Adults possess a flat, ribbon-like body shape that is important for absorbing nutrients from its hosts’ intestine.

When was Taenia solium and Taenia saginata discovered?

Taenia saginata was differentiated from Taenia solium infection by the late 1700s. However, the exact life cycle of T. saginata was discovered around 1863 when the cattle was identified as the immediate host. Morphology (return to top) T. saginata is a long flattened ribbon-like tapeworm that is white in color.

What’s the difference between Taenia spp and gravid proglottids?

Taenia spp. proglottids. Gravid proglottids are longer than wide and the two species, T. solium and T. saginata, differ in the number of primary lateral uterine branches: T. solium contains 7-13 lateral branches and T. saginata 12-30 lateral branches.

Are there hooks on Taenia saginata scolex UN?

Taenia saginata does not have any hooks on its scolex un like its close relative the Taenia solium also know n as the pork tapeworm that infects the common domesticated pig. You can see below a clear example of the hooks present in between the four suckers.