What is the morphology of Taenia saginata?
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.
How do you differentiate eggs of Taenia solium and Saginata?
solium eggs stained entirely blue/purple in 4/18 cases and entirely magenta in one. Eggs of T. saginata were slightly larger and always ovoid, while T. solium eggs were smaller and were mostly spheric.
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.
Is Taenia Monoecious or dioecious?
It consists of multiple segments called proglottids. As a monoecious species, every single proglottid contains both the male and female reproductive systems.
How does Taenia Saginata grow and reproduce?
As the tapeworm grows in the human intestine, mature proglottis called gravid proglottis will be casted off out of the human body. Each gavid proglottids contains both male and female reproductive organs and houses 80 thousand eggs. Each round egg measures 31-43 micrometers and contains an embryo (an oncosphere).
What are the characteristic features of the eggs of Ascaris?
Fertilized and unfertilized Ascaris lumbricoides eggs are passed in the stool of the infected host. Fertilized eggs are are rounded and have a thick shell with an external mammillated layer that is often stained brown by bile. In some cases, the outer layer is absent (known as decorticated eggs).
What is the genus of Taenia saginata?
Taenia
Taenia saginata/Genus
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.
Can Taenia saginata cause cysticercosis?
Infection with T. solium tapeworms can result in human cysticercosis, which can be a very serious disease that can cause seizures and muscle or eye damage. Taenia saginata does not cause cysticercosis in humans.
Is Taenia saginata a flatworm?
tapeworm, also called cestode, any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic flatworms containing about 5,000 species.
What is the habitat of taenia Saginata?
Taenia saginata is a parasite so its habitat and nutrition comes from another organism. Now the Beef tapeworm has two hosts that it infects in a lifetime: the definitive host and the intermediate host. The Definitive Host: Us! The adult worm spends most of its time in the human’s small intestine.
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.
How big is the egg of a taenia?
The eggs of both species are similar in morphology; being spherical, 40-48 µ m in diameter, surrounded by a thick striated wall, and containing a hexacanth (six-hooked) embryo (oncosphere).
How many eggs does Taenia solium produce per proglottid?
T. saginata may produce up to 100,000 and T. solium may produce 50,000 eggs per proglottid respectively. Taenia saginata and T. solium are worldwide in distribution.