Helminties are one of the most common diseases among children and adults.In the human body, various types of worms can parasite.There is an opinion away from medicine that helminths affect only the digestive tract, in fact, worms can parasitize in almost all internal organs - liver, lungs, heart, brain, as well as in muscle tissue, subcutaneous tissue and eye.The article refers to what worms a person has.
Classification
There are a large number of helminths that can reach a person, below are the most common of them.Most worms belong to any of the 3 groups-Trematodes, cestodes or nematodes.
Trematodes are a class of parasitic worms flat, about 40 types of worms that surprise one person.The most common:
- Cat or Siberria bicarry (optisthorchosis causes);
- Schistosomes (schistosomiasis causes).
Cestodes are ribbon plans.Cestod representatives do not have a digestive system.Most of the time, a person is surprised:
- Bull tape (causes tusinchos);
- Pork meat tapeworm (causes cystycosis);
- Echinococcus (equinochococal cause).
Nematodes are round worms, primary crap.Common helminths that affect the person:
- Pinworms;
- Askarides;
- Vlashev.
Worms in humans are symptoms in the photo (most helminths affect gastrointestinal tract, so nausea and vomiting, diarrhea or constipation, intestinal obstruction, causal weight loss, lack of appetite or excessive hunger):
Koshachi or Siberian Bicarry
Koshachi or Siberian bicarry - a small lanceolate parasite of a group of liver suckers.The causative agent of the Opicorkhoz disease.At the length of the feline bicarry, it reaches 8 to 18 millimeters, in width-2,2-2 mm.The parasite develops in the organisms of the two owners - intermediate and final.The intermediate host is mollusc and carp fish, the final is a person.
Along with the feces of infected people and animals, eggs fall into fresh reservoirs, swallow mollusks there.In the body of the mollusk, eggs reach the invasive - cervical stage, cervicals leave molluska and are introduced into the body of carp fish or enter their organisms when mollusks are eating fish.In the body of fish, the parasite develops one meter in cysts, its dimensions reach 0.17-0.21 mm.
When eating, an infected fish is infected with a person, the cysts leave the meter in their body, pass from the stomach and intestine to the liver and the bile ducts.In these organs, they remain parasitized and, after 10 to 12 days, reach the sexually mature internship, begin to lay eggs.In the human body, the two -year -old can parasite from 10 to 20 years.
SchistosSames
Schistosomes are blood discs.This is a separate Helminta, reaches 4-20 mm long, 0.25 mm wide.The body of the schistosome is equipped with the 2nd suction and abdominal glasses, they are located close to each other.Schistosoma females are longer and thinner than men.There is a longitudinal groove in the male body, with him, he holds the female.Its eggs with a diameter of 0.1 mm, oval shape, on the surface of one pole, are a large peak.
Human worms of schistosomes in the role of the final owner choose people in their organisms that they parasitize in small colon veins, abdominal cavity, uterus, bladder.The worms feed on blood, partially absorb nutrients through the cuticle.Schistosomes are transported to the gut and bladder, where they mature and stand out with feces or urine.In freshwater waters, a larva comes out of eggs, its intermediate host is mollusc.In the body of the mollusk, the kebab goal develops for curials in 4-8 weeks.
Conical tape
The bull chain is a strip parasite that causes a teenage disease.These are huge helminths that can grow 3 to 12 meters long.In the body of the parasite, there is a small head with a diameter of up to 3 mm, a neck and about 1000 segments.After entering the human body, along with unused finished meat, the lonator is attached to the intestinal walls with 4 glasses of suction.
In Hermaphrodite segments, helminth eggs are lained, annually an individual lays up to 600 million eggs.Such helminths in humans are parasites in the gut of 20 years or more if there is no timely treatment.
TENESES OF PIG MEAT
The tapeworm of pork, like the bull, in the body has 4 glasses of suction, but besides Helminth's body is also equipped with a double beater of hooks.It reaches two to three meters long.The pork tapeworm has a three -doped ovary, on each side the uterus has 7 to 12 branches.One feature of this helminth is the ability of the segments to get out of the anus.After exit abroad, its shell is dry and exploded, so that the Helminth eggs enter the outer environment.The intermediate master of tapeworm can be pigs and a person.
The main owner is a person.Intestinal parasites in humans include pork meat tape, helminths are located in the patient's gut where he lays his eggs.Infection occurs when invasive meat is used.
Echinococcus
The causative agent of echinococosis reaches 3-5 millimeters in length.It consists of a head, in which there are four suction glasses and two holes of hooks and three - four segments.The last of the segments has a reproductive system developed.The intermediate host is cattle or one person, the final owner is dogs, wolves.Infection occurs as an oral route.
Echinococcus enters the gut, where the larvae come out of the eggs.With the help of hooks, the larvae penetrate the door vein system, from which, along with the blood, they spread in the liver, light and muscle tissue.
High
Tips - Round worms, Enterobiosis pathogens, the disease called dirty hands.To a greater extent, children's infection is subject to children.Infection occurs as oral and contact the property.You can find these worms in the stool.
Pinworms heliminating females reach 5 to 10 mm long, men-3 mm.The body shape for worms is the milky white spindle shape.The end of the body in the females is slightly pointed.Adult worms parasitize in the lower and large intestine of a person, holding the wall with the help of the head vesicles.To lay eggs, worms females enter the rectum, crawl and lay eggs in the anus area, then die.Late eggs become invasive after 4-6 hours.The life expectancy of the worms - one - two months.
Askarids
Askarides are other representatives of the round worms class - parasites, aspariasis pathogens.These helminths are yellowish - pink, have an elongated axis of the figurative form, separately.Ascarid females grow to 20 to 40 centimeters, males reach a length of 15 to 25 centimeters.Every day, an ascarized adult female lays more than 200,000 eggs, which, together with human feces, stand out in the external environment, where after 12 to 14 days they become invasive.
The human body is parasitized in the gastrointestinal tract, located mainly in the small intestine.A complete development cycle of an invasive egg to a mature stage takes about 3 months.
Vlashev
Vlasodgov - round helminths that cause tricocefalose.Helminants are a thin brown nematodity, with a thin frontiers and rounded rear.Blazo head females grow up to 3.5 to 5.5 centimeters and men at 3 to 4.5 centimeters.A person's worms larvae are located in Cecum, where they parasitize to the stage of puberty, and the eggs are also placed there.With massive invasion, helminths can also occupy the large intestine, including the rectum.
Each day, the females of Blazo's head were 3,500 eggs.Helmint's eggs have a barrel -shaped shape, covered with a thick brown shell, the colorless "lids" are located in the posts.Eggs fall into the ground along with the intestinal movements of the main owner, in the presence of favorable conditions, can maintain invasion properties within two years.The duration of parasitization in the human gut is 5 to 7 years.