Classification of ascaris worm
What is a classification of Ascaris?
The Chromadorea are a class of the roundworm phylum, Nematoda. They contain a single subclass and several orders. With such a redundant arrangement, the Chromadoria are liable to be divided if the orders are found to form several clades, or abandoned if they are found to constitute a single radiation.
What are the types of ascariasis?
An estimated 807 million–1.2 billion people in the world are infected with Ascaris lumbricoides (sometimes called just Ascaris or ascariasis). Ascaris, hookworm, and whipworm are parasitic worms known as soil-transmitted helminths (STH). Together, they account for a major burden of parasitic disease worldwide.
What type of worm is Ascaris?
Ascariasis worm
Ascariasis (as-kuh-RIE-uh-sis) is a type of roundworm infection. These worms are parasites that use your body as a host to mature from larvae or eggs to adult worms. Adult worms, which reproduce, can be more than a foot (30 centimeters) long.
What is a round worm classified as?
Worms with round, non-segmented bodies are known as nematodes or roundworms (Figure below). They are classified in the phylum Nematoda, which has over 28,000 known species.
What are the characteristics of Ascaris?
Adults of Ascaris lumbricoides are large roundworms. Females measure 20–35 cm long with straight taisl; males are smaller at 15–31 cm and tend to have curved tails. Adults of both sexes possess three “lips” at the anterior end of the body.
What are the symptoms of Ascaris?
People infected with Ascaris often show no symptoms. If symptoms do occur they can be light and include abdominal discomfort. Heavy infections can cause intestinal blockage and impair growth in children. Other symptoms such as cough are due to migration of the worms through the body.
What are three characteristics of roundworms?
Roundworms have a pseudocoelom and hydrostatic skeleton. Their body is covered with tough cuticle. Free-living roundworms are found mainly in freshwater habitats. Parasitic roundworms have a variety of hosts, including humans.
What are the 7 levels of classification for a earthworm?
7 Classifications of Earthworms
- Kingdom: Animalia. Earthworms belong to the Animalia kingdom. …
- Phylum: Annelida. Annelids are segmented worms. …
- Class: Clitellata. …
- Order: Haplotaxida or Lumbriculida. …
- Family: Acanthodrilidae through Sparganophilidae. …
- Genus and Species.
What is the characteristics of roundworms?
Roundworms (nematodes) are bilaterally symmetrical, worm-like organisms that are surrounded by a strong, flexible noncellular layer called a cuticle. Their body plan is simple. The cuticle is secreted by and covers a layer of epidermal cells.
What is the difference between male and female Ascaris?
Ascaris is dioecious, which means it has separate sexes. Males and females are morphologically distinct. Females are longer than males. Posterior ends of males are hooked or curved while females have a straight posterior end.
What is ectopic ascariasis?
The presence of Ascaris worms in unusual sites (i.e. sites other than the jejunum of the small intestine) arises when migrating larvae end up in ectopic sites, when adult worms wander into small orifices including the bile duct, the hepatic duct branches, the parenchyma or the pancreas, and when through perforated …
Which disease is caused by Ascaris and wuchereria?
Ascaris causes ascaris and Wuchereria (Filarial worm) causes filariasis.
Is Ascaris a hookworm?
Hookworm, Ascaris, and whipworm are known as soil-transmitted helminths (parasitic worms). Together, they account for a major burden of disease worldwide. An estimated 807-1,221 million people in the world are infected with Ascaris lumbricoides (sometimes called just “Ascaris”).
What is the infective stage of Ascaris?
Second juvenile
So, the correct answer is ‘Second juvenile‘.
What is the host of Ascaris?
Humans
Hosts. Humans and swine are the major hosts for Ascaris; see Causal Agents for discussion on species status of Ascaris from both hosts. Natural infections with A. lumbricoides sometimes occur in monkeys and apes.
Which type of drugs are used for treatment of Ascaris?
Anthelmintic medications (drugs that remove parasitic worms from the body), such as albendazole and mebendazole, are the drugs of choice for treatment of Ascaris infections, regardless of the species of worm. Infections are generally treated for 1–3 days. The drugs are effective and appear to have few side effects.
What are the complications of ascariasis?
Complications of ascariasis are related to worm burden and location of the relatively large nematode. They include acute abdomen, upper GI bleeding, small-bowel obstruction, volvulus and intussusception, peritonitis, biliary colic, acute cholecystitis, acute pancreatitis, acute cholangitis, and hepatic abscess.
How is ascariasis diagnosed?
The standard method for diagnosing ascariasis is by identifying Ascaris eggs in a stool sample using a microscope. Because eggs may be difficult to find in light infections, a concentration procedure is recommended.