Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
tapeworms in humans essay
tapeworms in humans essay
tapeworms in humans essay
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: tapeworms in humans essay
Cestodiasis, otherwise known as “cestodes” or “tapeworm infestation”, is an infection caused by consuming tapeworm eggs and/or larvae. This is a rare disease found in humans with fewer than 200,000 US cases per year. This rare disease is treatable by a medical professional but requires a medical diagnosis. Cestodiasis or “cestodes” can be spread through contaminated food or water. A tapeworm infestation in the human body is usually confined to the intestine but can be spread to other parts of the body. If the tapeworms reach other parts of the body it can cause organ failure and tissue damage. Adult tapeworms can live up to 30 years in their host. Many people never realize they have tapeworms because it doesn't have any symptoms. In many …show more content…
It is a class of the parasitic worm called the flatworm. It is known best as the tapeworm. Depending on the tapeworm, they can become very long. The tip of their scolex contain hooks and suckers to help better attach itself to its host. It will attach itself to the intestinal wall then suck and absorb their food through the skin. There are 2 types of tapeworm infestations in humans. The first one is called intestinal cestodiasis which is where mature worms live in the lumen of the intestine, producing eggs which are then placed in feces. They are then in the future passed into other hosts and then developed there. The second type of infestation is visceral and somatic cestodiasis which is where the larvae form and live in the bodies organs. There are 30 or more types of tapeworms that can cause intestinal cestodiasis in …show more content…
This worm can grow up to 4.5 to 6 meters long which is about 15 to 20 feet long. Another type of worm is the Taenia Solium or the “pork tapeworm”. This worm is smaller the the Taenia Saginata only growing 2 to 3 meters long. Diphyllobothrium Latum, or “fish tapeworm”, can grow to 9 meters long. This worm is acquired by eating undercooked meats such as beef, pork, or fish that are usually infected with tapeworm larvae or eggs. The most common tapeworm found in humans is the Hymenolepis Nana or the “dwarf tapeworm”. This worm is no more than a few centimeters long and it releases eggs that require no intermediate
Schistosomiasis is a parasite. This parasite is a worm that you get through contaminated water. Urine and feces usually contaminate the water. The worm goes in to your body and migrates to the bladder, rectum, liver, lungs, spleen, intestines and some veins. After the worm migrates to these places this is where it matures and lays its eggs. The disease has the ability to lay two thousand to three thousand eggs per day and can live for twenty years. There are five different kind of Schistosomiasis that effect humans, these different kinds are; S. mansoni, S. Heamatobium, S. japonicum, S. intercalatum and S. mekongi. There are also other kinds of Schistosomiasis that occasionally infect humans, there are; S. bovis, S. mathei, and some avian schistosomes.
the definition of parasite, is something that hurts. for ever. this parasite, was a landmine. I had good medical attention. But once i returned home, I finally left. I wanted to leave. there were rockets, raining down in every place i looked. those rockets stole my family. we couldn't stay. so we fled. the last time i had a true education, was when i entered high school. between 2nd grade and 9th the education i had in my birth place, that wasn't any kind of education. i wanted more. and there was nothing there for me to want
Flatworms belong to the phylum Platyhelminthes. They have the simplest body plan of all bilaterally symmetrical animals. They are called flatworms because their bodies are compressed. The mouth is the only opening into the digestive cavity the flatworms have. Food is taken in through this hole and wastes are discharged also through this hole. Flatworms have a well-defined nervous, muscular, excretory, and reproductive system. The flatworm distributes the food it digests through a digestive tube that branches throughout all of its body parts. The fact that the worm’s body is flat serves many purposes. It allows the worm to hid in small spaces, to fit into the opening of other animals if the worm is parasitic, and it means that all the cells are close enough to the surface for exchange of oxygen and carbon dioxide with the environment (Meinkoth 399).
The objective of this experiment was to test the effect of light exposure on the regeneration of Dugesia dorotocephala. Dorotocephala is a species which belongs to the kingdom Animalia, class Turbellaria, order Seriata, these worms are classified in the suborder Tricladida based on the three main branches of their digestive system. They are further subdivided based upon ecological habitat. They come in freshwater, marine and terrestrial forms (Alvarado, Reddien). they belong to the family Planariidae and genus Dugesia. These creatures display bilateral symmetry and are classified as metazoans (eumetazoans). Dugesia are found in freshwater habitats in various regions of the world. They inhabit places in Africa, the Middle East, Europe, Asia and even parts of Australia. These small animals tend to be elongated with a triangular head. They possess a dorsal surface coated in shades of grey, black and brown, and a ventral which is a paler shade than the dorsal side. In general they are small and soft bodied which allows them to hide in tight spaces. They are classified as free living and lack a coelom, a hemal system and a circulatory system. Because of this many of their functions depend on diffusion. Freshwater turbellarians are benthic inhabitants of lakes, ponds, springs and streams. Their bodies are covered with cilia and they possess a syncytial epidermis. These small animals lack appendages and rely on cilia to glide over surfaces.
...rink blood there. Tapeworms are slightly divergent because instead of drinking blood from the intestines, they drink other fluids in each intestine. Each one of these worms can be treated by getting specific pills from the local vet. There is one other inside parasite that is a larger risk than the others, and that is the heartworm. Just like Mitral Valve Disease, heartworms clog the heart, and owners must get special pills as soon as possible. Of course, other than the heartworms, owners of Cavaliers really shouldn’t worry since it is rare to see a Cavalier get infected with one of the worms.
Paragonimus westermani (P. westermani) is part of the phylum Platyhelminthes. Platyhelminthes are flatworms, and are characterized by being acoelomate, triploblastic, and having a simple bilateral symmetry (Berkley.edu). The P. westermani is a member of the Trematoda class. Trematodas are flukes (parasite flatworms) that live inside vertebrates as their primary hosts and inside mollusks as intermediate hosts (wikipedia.org-trematoda). The parasite’s order is Plagiochiformes and suborder is Plagiochiata. The family of the P. westermani is Troglotrematidae. Organisms in this family are oval-shaped, thick flukes whose teguments are covered in spines. Paragonimus, its genus, usually describes parasites of carnivorous mammals; however, this is not always accurate. Although there are 48 species in the Paragonimus genus, westermani is the most prevalent worldwide (Roberts 277).
This disease may be on the brink of being eradicated entirely but that doesn’t stop it from being one of the grossest things that anyone has ever seen. The parasite enters the body via unsafe drinking water. When people drink water infected with water fleas that have have been hosting the larvae of the parasite. There are no symptoms, to begin with, but about one year later, blisters on the feet or legs begin to develop and then the adult fully developed worm crawls out of the host body over a period of a few weeks. It’s said that the pain is intense and can incapacitate a person for weeks at a time. The pain can also continue for months after the infection. The parasite needs to infect a person at least once a year in order to continue. There were an estimated 3.5 million cases in 1986 but the disease has been greatly reduced over time and only 22 cases were reported in 2015. This disease will probably be the first parasitic disease to be completely eradicated in humans.
There are two different types of worms or parasites that can affect animals, in relation to this report the focus will be on parasites that affect sheep. They are called endoparasites and ectoparasites. This report will predominately emphasise on the endoparasites, or the internal parasites. These endoparasites are divided into three categories; nematodes [or roundworms], cestodes, [or tapeworms] and trematodes [or flukes]. The parasites are broken into these groupings due to their structure.
According to the U.S. Food and Drug Administration on their website Animal and Veterinary it states the following. (Show a slide of how the heartworms are transferred)
2. The two types of tapeworms that I am going to focus on, is Taenia saginata and Taenia solium. Aka: T. saginata and T. solium.
Descriptions and articles about the Tongue Worms (Pentastomida) - Encyclopedia of Life. (n.d.). Retrieved November 13, 2015, from http://eol.org/pages/2630868/details
course of development. I kept them on my desk, in my dorm room, where the light from the window would hit it during the day. I also had an artificial light on the hornworms throughout the night to get more light exposure. The temperature in my dorm room is kept at 72 degrees, assuming it may have fluctuated a degree or two higher/lower depending when the air conditioner kicked in. The food source for the hornworms was mainly a mixture of wheat germ and agar, along with an occasional paper towel of water. As the hornworm grew bigger, I placed a piece of lettuce in the container as well.
In order for you to understand how Echinococcus works. You have to understand how it is transmitted into your system and begins infecting you. Echinococcus goes through several different steps on how it is developed and then transmitted to other hosts. The adult echinococcus tapeworm is about 5 mm long and lives in the small intestines of dogs and another canine species such as coyotes, wolves and foxes. The stage where a cyst begins usually occurs in intermediate hosts; typically sheep’s but they can also affect cattle’s, horses, camels, pigs and goats and many others. Tapeworm eggs are passed by the feces of infected dogs and then are digested by grazing sheep’s. These eggs then hatch into the embryos within the intestines, and then penetrate the intestines to be carried by the blood to major organs such as the liver and lungs. This larval stage of the parasite is called an oncosphere. The larval stage spreads by the bloodstream to target organs and other parts of the body, such as liver, lungs, ...
... mm long and 3–7 mm wide. After the fish's tongue is destroyed, the parasite attaches itself to the stub of the old tongue, and becomes the fish's new tongue.
one in which the host animal can live for a long enough time for the parasite to