Helminthias are one of the most common diseases in children and adults.In the human body, various types of worms can be parasitized.Medicine is far from the opinion that the helmink only affects the digestive system, and in fact, worms can be parasitized in almost every internal organ - liver, lungs, heart, brain brain, as well as muscle tissue, subcutaneous tissues and eyes.The article indicates what kind of people the worms have.
Classification
A huge number of helmin, which can hit a person, is the most common below.Most worms belong to any of the 3 groups of groups, cestodes or nematodes.
Trematodes is a class of flat -shaped parasitic worms, approx.40 types of worms that are known for a person.The most common:
- cat or Siberian bicarry (causes opisthorchosis);
- Schistosomes (causes schistosomosis).
Cestodes are ribbon flat worms.The representatives of the Cestodas do not have a digestive system.Most often a man is amazed:
- bull tape worm (causes tusinchosis);
- pork -tape worm (causes cystiscosis);
- Echinococcus (causes echinococcosis).
The nematodes are round worms, primary shit.Common helmints that affect the man:
- Pinworms;
- Askarides;
- Vlashev.
People's worms are symptoms of photo (most halmin affects gastrointestinal tract, ie nausea and vomiting, diarrhea or constipation, intestinal obstruction, causing weight loss, lack of appetite or excessive hunger):
Koshachi or Siberian bicarry
Koshachi or Siberian bicarry - a little spear parasite from a group of liver suckers.Opisthork is a causative agent of the disease.The cat's bicarry length reaches 8-18 millimeters, width-1,2-2 mm.The parasite develops in the organism of the two owners - intermediate and final.The intermediate host is the mollusk and the carp fish, the decisive one person.
Together with the stools of infected people and animals, the eggs fall into fresh reservoirs and swallow molluscs.In the mollushed body, eggs reach the invasive stage - the cervix, the cervix leave the mollus and introduce them to the carp -fish body or enter their organism when molluscs eat fish.In the body of the fish, the parasite is formed in the cysts and its dimensions reach 0.17-0.21 mm.
During meals, the infected fish is infected by a person, the cysts leave the meter in the body and pass from the stomach and intestine to the liver and bile ducts.In these organs they remain parasitized and after 10 to 12 days they reach the sexually mature stage, starting eggs.In the human body, the cat can parasitize for 10-20 years for two years.
Schistosomes
The systosomes are bloody.It is a flat, separate helmints, reaching 4-20 millimeters, with a width of 0.25 mm.The body of the schistosome is located in the 2nd suke and abdominal, close to each other.Schistosoma females are longer and thinner than men.The man's body has a longitudinal groove, holding the female with him.On the surface of one of the poles, their eggs with a diameter of 0.1 mm in diameter have a large spike.
The human worms of the schistosomes choose people in the role of the final owner, and in their organisms they are parasitized in the small veins of the colon, the abdominal cavity, the uterus, the bladder.The worms feed on blood and partly absorb nutrients on the cuticle.The systosomes are transported to the intestine and the bladder, where they ripen and stand out in the stool or urine.In the freshwater waters, a larva comes out of the eggs, an intermediate host.In the body of the Mollusk, Meta Ceriacaria develops in 4-8 weeks to Curials.
Cone
The bull chain is a striptease parasite that causes a disease of teeniainchosis.These are huge helmits that can be up to 3-12 meters long.The parasitic body has a small head with a diameter of up to 3 mm, neck and approx.1000 segments.After entering the human body, with unprocessed thermally infected meat, the soliter is secured to the intestinal walls with 4 sucks.
In the Hermaphrodite segments, Helmin eggs are laid, with an individual of 600 million eggs each year.In humans, such helmink parasites in the intestine at least 20 years old, if there is no timely treatment.
Pork worm
The pork -tape worm, like the bull, has 4 sucks in the body, but also Helmin's body is equipped with a double hook.Reaches the two to three meters.The pork -tape worm has three highly ovarians, with the uterus on both sides from 7 to 12.The characteristic feature of this helmin is the ability of segments to leave the anus.After extermination, their peel dries and exploded, so the helmin eggs enter the outer environment.The intermediate master of the tapeworm can be pork and person.
The main owner is a person.People's intestinal parasites include pork, and the helmints are located in the stool of the patient, where they lay eggs.The infection occurs using invasive meat.
Echinococcus
The causal agent of echinococcosis reaches 3-5 millimeters.It consists of one head with four sucks and two hook holes and three to four segments.The last segments have an advanced reproductive system.The intermediate host is livestock or person, the final owner of dogs, wolves.The infection occurs as an oral path.
The echinococcus enters the gut where the larvae come out of the eggs.With the help of hooks, the larvae penetrate the gate vein system, from which they spread to the liver, light muscle tissue.
Speakers
Tips - Round worms, pathogens of Enterobiosis, dirty hands are called a disease.To a greater extent, children are exposed to children.The infection occurs orally and in contact.You can find these worms in the stool.
The females of the Pinworms genus reaches 5-10 mm long, males-3 millimeters.The shape of the body worm for Pinworms is a spindle -shaped milk white.The end of the body is slightly pointed in females.Adult worms parasitize on the lower and colon of a person, secured to the wall with the help of the head ves.For egg eggs, the Pinworms females enter the rectum, climb out and lay eggs in the anus and die.Delayed eggs become invasive after 4-6 hours.Pinworms has an expected life expectancy - one - two months.
Askarids
Askarides is another representative of the round worms class - parasites, Ascariasis pathogens.These helmits are yellow -pink, especially the elongated spindle, separately.The females of ascaride grow to 20-40 centimeters, with males 15-25 centimeters long.Each day, an adult female ascarida invests more than 200,000 eggs, which, together with human excrement, emerge into the external environment, where they become invasive after 12-14 days.
The human body is parasitized in the gastric intestine tract, especially in the small intestine.The total development cycle from invasive egg to mature stage takes about 3 months.
Vlashev
Vlasodgov - round helmits that cause trichocephalosis.Helminants are a thin brown nematodes with a thin, filamentary front and rounded back.The females of Blazo-Head grow to 3.5-5.5 centimeters and the males are 3-4.5 centimeters.The larvae of man's worms are localized in the Cecum, where they parasitize the stage of puberty and the eggs are laid there.With a massive invasion, the helmink can occupy the colon, including the rectum.
Every day, the females of the Blazo head laid 3.5 thousand eggs.Helmin eggs are barrel -shaped, covered with a thick brown shell, colorless "lids" are found at the poles.Eggs fall into the soil together with the intestinal movements of the main owner, and they can keep invasion properties for two years under favorable conditions.The duration of parasitization in the human intestine is 5-7 years.