What is the morphology of Taenia saginata?
Morphology (return to top) saginata is a long flattened ribbon-like tapeworm that is white in color. It is about 6 to 7 milimeters in width. The adult T. saginata usually grows to be about 4 to 8 meters in length, with about 1000 segments called proglottids.
How is Taenia saginata identified?
Diagnosis of Taenia tapeworm infections is made by examination of stool samples; individuals should also be asked if they have passed tapeworm segments. Stool specimens should be collected on three different days and examined in the lab for Taenia eggs using a microscope.
What is the morphology of Taenia solium?
The adult Taenia solium has a head (scolex) that consists of four suckers and a rostellum with a double crown of hooks, and unsegmented narrow neck, and a large body formed by several hundred proglottids (Figure 1). The entire body is called a strobila and may range in size from two to eight meters long.
How can you tell the difference between Taenia solium and Taenia saginata?
solium contains four large suckers and a rostellum containing two rows of large and small hooks. There are usually 13 hooks of each size. The scolex of T. saginata has four large suckers but lacks the rostellum and rostellar hooks.
What is the difference between Proglottids and scolex?
The scolex contains organs which facilitate attachment to the host tissue. Examples of this include suckers or hooks. The neck contains germinal cells which can give rise to new proglottids. Proglottids are individual segments of the strobilus and contain reproductive organs of both sexes.
Is Taenia saginata a flatworm?
It also lacks an armed scolex unlike other Taenia. Like the other tapeworms, it causes taeniasis inside the human intestine, but does not cause cysticercosis. Its infection is relatively harmless and clinically asymptomatic….
| Taenia saginata | |
|---|---|
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Cestoda |
| Order: | Cyclophyllidea |
How do you identify Taenia solium?
The presence of the double row of hooks on the scolex of T. solium enables to distinguish these two species. Furthermore, the structure of the gravid uterus in the distal proglottids and that of the genitalia in the mature proglottids provide precise species identification.
Which is correct for Taenia solium?
Taenia solium, the pork tapeworm, belongs to the cyclophyllid cestode family Taeniidae. 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 pigs as the intermediate or secondary hosts.
What are the characteristics of Taenia solium?
Characteristics: Taenia solium is a tapeworm of the class cestoidea, order cyclophyllidea, and family Taeniidae 1. Adult worm: Mature worms are found only in humans. Adult worm grows to approximately 2-4 m. Scolex has 4 suckers and the rostellum has two crowns of horns.
What is the difference between segment and proglottid?
As nouns the difference between segment and proglottid is that segment is a length of some object while proglottid is any of the segments of a tapeworm; they contain both male and female reproductive organs.
What is the distinguishing feature of the D Latum Proglottids?
Diphyllobothriid tapeworm adults Proglottids are broader than long, with a single genital pore that opens in the middle of the ventral surface; fully mature specimens may be comprised of a 2,000—5,000 proglottids. The ovaries are characteristically rosette-shaped.
What phylum is Taenia saginata?
FlatwormTaenia saginata / Phylum
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.
What is the difference between Taenia solium and taeniasis?
The cestodes Taenia saginata (beef tapeworm), T. solium (pork tapeworm) and T. asiatica (Asian tapeworm). Taenia solium can also cause cysticercosis. Taeniasis is the infection of humans with the adult tapeworm of Taenia saginata, T. solium or T. asiatica. Humans are the only definitive hosts for these three species.
Is the Taenia saginata a tapeworm in East Asia?
In order to clarify the taxonomic status of the Taenia saginata-like tapeworm in East Asia, the morphological characteristics of the adult and cysticercus of classical T. saginata (American, Swiss and Poland strains) and the Taiwan Taenia were compared in the present study. The morphologic characteristics of these two parasites are very similar.
Does Taenia saginata have hooks on its scolex?
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.