Helmintiases are one of the most common diseases between children and adults.In the human body, several types of worms can parasitize.There is an opinion far from the medicine that helminths affect only digestive tract, in fact, worms can parasitize in almost all internal organs: liver, lungs, heart, brain brain, as well as in muscle tissue, subcutaneous tissue and eye.The article refers to the worms that a person has.
Classification
There are a lot of helminths that can hit a person, then they are their most common.Most worms belong to any of the 3 trematode, cestods or nematodes groups.
Trematodes are a kind of parasitic worms flat, approximately 40 types of worms that surprise a person are known.The most common:
- Cat or Siberian Bicarry (Opistorcosis cause);
- Schistosomas (causesomosis causes).
Cestods are flat tape worms.The representatives of the Cestodes do not have a digestive system.Very often, a person is amazed:
- Bull cover (cause tosynchosis);
- Pork lid (cystiscosis cause);
- Echinococcus (cause equinococosis).
Nematodes are round worms, primary garbage.Common helminths that affect the person:
- worm;
- Askarides;
- Vlashev.
Human worms are symptoms in the photo (most helminths affect the gastrointestinal tract, therefore, nausea and vomiting, diarrhea or constipation, intestinal obstruction, weight loss without cause, lack of excessive appetite or hunger):
Koshachi or Bicarry Siberian
Koshachi or Bicarry Siberian: a small lanceolate parasite of a group of liver offspring.The causal agent of Opisthhoz disease.In the length of the Bicarry feline, it reaches 8-18 millimeters, in width-1,2-2 mm.The parasite develops in the agencies of the two owners, intermediate and final.The intermediate guest is mollusks and tents fish, the final is a person.
Together with the stool of infected people and animals, the eggs fall into fresh deposits, there swallow mollusks.In the body of the mollusk, the eggs reach the invasive stage: cervical, the cervix leave Molluska and are introduced into the carp fish body, or enter their organisms when the mollusks are eating fish.In Pisces' body, the parasite develops to a cyst meter, its dimensions reach 0.17-0.21 mm.
When eating, an infected fish is infected by a person, the cysts leave the meter of their body, pass the stomach and the intestines to the liver and the bile ducts.In these organs, they remain parasitated, and after 10-12 days they reach the mature sexual stage, they begin to put eggs.In the human body, the two-year-old boy can parasitize up to 10-20 years.
Schistosomas
Schistosomas are blood saucers.This is a separate heline, it reaches 4-20 millimeters in length, 0.25 mm wide.The body of the schistosome is equipped with the second cups of suction-ural and abdominal, they are close to the other.Schistosome females are longer and thinner than males.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 of the poles are a large spike.
Human worms of schistosomas in the role of the final owner choose people, in their organisms parasitize in small veins of the colon, abdominal cavity, uterus, bladder.The worms feed on the blood, partially absorb nutrients through the cuticle.The schistosomas are transported to the intestines and the bladder, where they mature and stand out with feces or urine.In the fresh water, a larva leaves the eggs, its intermediate guest is the mollusk.In the body of the mollusk, Ceriacar Meta develops to the curials in 4-8 weeks.
Mug
The bull chain is a parasite of strips that causes a teenage disease.These are huge helminths that can grow up to 3-12 meters long.In the body of the parasite there is a small head with a diameter of up to 3 mm, a neck, as well as around 1000 segments.After entering the human body, together with thermally infected meat, the soliter joins the intestinal walls with 4 cups of suction.
In the hermaphrodite segments, Helminth eggs are placed, annually an individual puts up to 600 million eggs.Such helminths in humans are parasites in intestines of 20 years or more, if there is no timely treatment.
Pork cap
The pig had, like the bull, in the body it has 4 cups of suction, but in addition to this, the body of the Helmint is also equipped with a double hook whistle.Reaches two to three meters long.The pig had an ovary of three doping, on each side, the uterus has 7 to 12 branches.A characteristic feature of this Helminto is the ability of the segments to get out of the anus.After the exit to the outside, its peel dries and explodes, so the hemmintos eggs enter the external environment.The intermediate teacher of the Ten could be pigs and a person.
The main owner is a person.Intestinal parasites in humans include pork tapegurt, Helmintos are found in the patient's intestines, where he puts their eggs.The infection occurs when invasive meat is used.
Echinococcus
The causal agent of equinococosis reaches 3-5 millimeters in length.It consists of a head, in which there are four sucking cups and two hook holes, and three - four segments.The last of the segments has a developed reproductive system.The intermediate guest is won or a person, the final owner is dogs, wolves.The infection occurs as an oral route.
Echinococcus enters the intestines, where the larvae leave the eggs.With the help of hooks, the larvae penetrate the system of the door vein, from where, together with the blood, they extend towards the liver, the light, the muscle tissue.
Speakers
Tips: Round worms, pathogens of enterobiosis, dirty hands disease.To a greater extent, children's infection is subject to children.The infection occurs as an oral and contact form.You can find these worms in feces.
The females of the helminths of the genus of the pine nuts reach 5-10 mm in length, men-3 millimeters.The body's shape for pinwittle is white in the form of white spindle.The end of the body in females is slightly pointed.Adult worms parasitize in the lower parts of a person's small and open intestines, joining the wall with the help of head vesicles.To put eggs, the females of worms in the rectum enter the rectum, they drag and place eggs in the anus area, then die.Delayed eggs become invasive after 4-6 hours.The life expectancy of the pionstones, one - two months.
ASKARIDS
Askarides are other representatives of the round worms class: parasites, ascariasis pathogens.These helminths are yellowish: rose, they have an elongated spindle of the figurative form, separately.Ascarido females grow at 20-40 centimeters, males reach a length of 15-25 centimeters.Every day, an adult female rough puts more than 200,000 eggs, which, together with human feces, stands out in the external environment, where after 12-14 days they become invasive.
The human body is parasite in the gastrointestinal tract, located mainly in the small intestine.A complete development cycle of an invasive egg to a mature stage has been approximately 3 months.
Vlashev
Vlasodgov - Round Helmints that cause trichocephah.Helminants are a thin brown nematode with a thin fidical thin and rounded rear.The Blazo-Head females grow up to 3.5-5.5 centimeters and males up to 3-4.5 centimeters.The larvae of a person's worms are located in the blind man, where they parasitize the puberty stage, and the eggs are also put there.With a massive invasion, Helmints can also occupy the large intestine, including the rectum.
Every day, the Blazo females -strains put 3.5 thousand eggs.Helmint's eggs have a barrel -shaped shape, covered with a thick brown shell, there are colorless "tapas" in the posts.The eggs fall on the ground along with the intestinal movements of the main owner, in the presence of favorable conditions, they can maintain invasion properties for up to two years.The duration of parasitization in human intestines is 5-7 years.