Helminths are one of the most common diseases in children and adults.In the human body, different types of worms can parasitize.Medicine is far from the assumption that helminths affect only the digestive tract, in fact, worms can parasitize in almost all internal organs - liver, lungs, heart, brain, as well as muscular tissue, subcutaneous tissue and eyes.The article refers to what worms a person has.
Classify
There is a huge number of helminths that can blow the personality below the most common.Most worms belong to 3 groups of tremododes, cestodes or nematodes.
Trematodes are a class of flat -shaped parasitic worms, known about 40 types of worms that are amazed in humans.The most common:
- Cat or Siberian bicari (causes opistorchosis);
- Schistosomes (causes schistosomosis).
Cestods are ribbon flat worms.Representatives of Kestod have no digestive system.Most often, people are amazed:
- Bull tapeworm (causes tusyncosis);
- Pork plate (causes cysticosis);
- Echinococcus (causes echinococcosis).
Nematodes are round worms, primary vessels.Common helminths that influence the person:
- pinworms;
- Askarides;
- Vlashev.
Worms in humans are symptoms in the photo (most helminths affect the gastrointestinal tract, so nausea and vomiting, diarrhea or constipation, bowel obstruction, deterioration of weight, absence of appetite or excessive hunger):
Koshachi or Siberian bikar
Koshachi or Siberian bicari - a small parasite of lanacole from the liver suckers.Disease -causing agent opisthorkhoz.In the length of the feline bicarry, it reaches 8-18 millimeters, width -1.2-2 mm.The parasite develops in the organisms of the two owners - intermediate and final.The intermediate host is molluscs and carp fish, the final is a man.
Along with infected people and animals, eggs meet in new reservoirs, where they swallowed molluscs.In the mollusk body, the eggs reach the invasive stage - the cervix leaves the cervix, the cervix leaves the mollusca, and the cobra enter the body of the fish, or enter their organisms when molluscs eat fish.In the body of fish, the parasite develops in the cysts on the meter, its size reaching 0.17-0.21 mm.
During eating, infected fish are infected by the mouth, cysts leave the meter in the body, they move from the stomach and intestine to the liver and bile ducts.In these organs they are parasitized and after 10-12 days they reach the sexual mature stage, starting to lay eggs.In the human body, a two-year-old cat can parasitize the age of 10-20.
Schistosomes
Schistosomes are a blood crushing.These are flat separate helminths, reaching 4-20 millimeters long, width 0.25 mm.The body of Schistosome is equipped with 2nd suction cups and abdomen, they are close to each other.Schistosoma woman is longer and thinner than males.There is a longitudinal body on the male body, with her, she holds a woman.Their eggs are 0.1 mm in diameter, oval -shaped, one of the poles on the surface is a large spike.
Human worms of the Schistosoms in the role of the final owner are chosen by people, in their organisms they parasitize the colon, abdominal, uterus, bladder.The worms feed on the blood, partially absorbing nutrients through the cuticle.Schistosomes are transported to the intestines and bladder, where they ripen and distinguish feces or urine.In freshwater waters, the larva comes out of the eggs, its intermediate host mollusc.In the body of the mollusk, meta canticaria develops for 4-8 weeks.
Bull taper
The bull chain is a striped parasite that causes teenage -syncosis disease.These are huge helminths that can grow up to 3-12 meters long.On the body of the parasite is a small head that has a diameter of up to 3 mm, the neck, as well as about 1000 segments.After entering the human body, along with raw thermally infected meat, the soliter is attached to the intestinal walls with 4 suction cups.
In Hermaphrodite segments, helminth eggs are laying, one individual 600 million eggs each year.In humans, such helminths have been parasite in the intestines for more than 20 years if there is no timely treatment.
Pork plate
The pig, like bulls, has 4 suction bowls on the body, but in addition, the helminth body is also fitted with a double screw of hooks.It reaches two to three meters in length.The pork pan has a three -step ovary, each side has a uterus from 7 to 12 branches.A characteristic feature of this helminth is the ability of segments to be released from the anus.After external exit, their shells dry and swollen, so helminth eggs enter the outer environment.The intermediate wizard of Tapeworm can be pigs and people.
The main owner is the person.Intestinal parasites include a pig plate in humans, helminths are located in the patient's intestines where it lay eggs.Infection occurs when invasive meat is used.
Echinococci
Echinococcosis-causing agent reaches 3-5 millimeters in length.It consists of a head with four suction bowls and two walnut holes and three - four segments.The last segments have a developed reproductive system.The intermediate host is cattle or mouth, the final owner is dogs, wolves.The infection occurs as an oral route.
Echinococcus enters the intestines, where the larvae come out of the eggs.With the help of hooks, the larvae enter the gate vein system, from which, along with blood, they spread to the liver, light, muscular tissue.
Speakers
Tips - Round worms, entrobiosis pathogens, so -called dirt hands.To a larger size, children's infection is exposed to children.The infection occurs as an oral and contact house pathway.These worms can be found in feces.
Pinworms helminth women reach 5-10 mm in length, male -3 millimeters.Body shape pinworms is a spindle -shaped milky white.The end of the body is slightly marked in women.Adult worms parasitize the lower and large intestines of the mouth, attached to the wall with the help of head vesicles.To lay eggs, Pinworms women move into the rectum, blew and lay eggs in the anus, then die.Delayed eggs become invasive after 4-6 hours.Life expectancy of pinworms - one - two months.
Ascarids
Askarides are another representative of the round worm class - parasites, ascariosis pathogens.These helminths are yellowish - pink, have a figure -shaped elongated spindle, separately.Ascaridi female grows to 20-40 cm, the male reaches 15-25 cm.Every day, an adult woman Ascarida holds more than 200,000 eggs, which, along with human feces, stands out in an outdoor environment, where they become invasive after 12-14 days.
The human body is parasitized in the gastrointestinal tract, which is mainly localized in the small intestine.The full development cycle from invasive eggs takes about 3 months at the mature stage.
Vlashev
Vavlodovov - Round helminths that cause trichocephalosis.Helminants are a thin brown nematode that has a thin thread on the front and a rounded back end.The blazo-head woman grows to 3.5-5.5 cm and the male to 3-4.5 cm.The larvae of the worms are localized in the dance, where they parasitize the puberty stage and the eggs are raised there.With a massive invasion, helminths can also occupy the large intestine, including the rectum.
Every day, Blazo women lay 3.5 thousand eggs.Helminth eggs have a barrel -covered shape covered with thick brown shell, colorless "lids" are located on the poles.Eggs fall into the soil along with the intestinal movements of the main owner, if favorable conditions, they can maintain the properties of the invasion for up to two years.The duration of parasitization in the human intestines is 5-7 years.